LAST LAST Certifications LSAT-TEST Questions & Answers

• Question 1:

  In a school, 9 students, Andrew, Bach, Caesar, Drew, Elena, Fischer, Grant, Hughes, and Ileana are selected to form 3 debate teams – Team A, Team B and Team C - to participate in interschool competitions. The following information is known: Each team will have exactly 3 students and no student can be a part of more than one team Caesar cannot be selected in Team A if Ileana is not selected in Team A as well Andrew and Bach are in the same team and so are Elena and Grant Andrew and Caesar are not in the same team Bach and Ileana are not in the same team Drew and Elena are not in the same team

  Which of the following could be the members of Team A?

  A. Andrew, Bach, Elena

  B. Andrew, Drew, Fischer

  C. Caesar, Elena, Grant

  D. Drew, Elena, Grant

  E. Elena, Grant, Ileana

  Correct Answer: E

• Question 2:

  In a school, 9 students, Andrew, Bach, Caesar, Drew, Elena, Fischer, Grant, Hughes, and Ileana are selected to form 3 debate teams – Team A, Team B and Team C - to participate in interschool competitions. The following information is known: Each team will have exactly 3 students and no student can be a part of more than one team Caesar cannot be selected in Team A if Ileana is not selected in Team A as well Andrew and Bach are in the same team and so are Elena and Grant Andrew and Caesar are not in the same team Bach and Ileana are not in the same team Drew and Elena are not in the same team

  Which following pair of students cannot be in the same team?

  A. Bach and Elena

  B. Fischer and Ileana

  C. Bach and Fischer

  D. Fischer and Grant

  E. Elena and Hughes

  Correct Answer: A

• Question 3:

  In a school, 9 students, Andrew, Bach, Caesar, Drew, Elena, Fischer, Grant, Hughes, and Ileana are selected to form 3 debate teams – Team A, Team B and Team C - to participate in interschool competitions. The following information is known: Each team will have exactly 3 students and no student can be a part of more than one team Caesar cannot be selected in Team A if Ileana is not selected in Team A as well Andrew and Bach are in the same team and so are Elena and Grant Andrew and Caesar are not in the same team Bach and Ileana are not in the same team Drew and Elena are not in the same team

  Which following pair of students can be in the same team?

  A. Andrew and Caesar

  B. Drew and Grant

  C. Bach and Ileana

  D. Andrew and Grant

  E. Caesar and Grant

  Correct Answer: E

• Question 4:

  In a school, 9 students, Andrew, Bach, Caesar, Drew, Elena, Fischer, Grant, Hughes, and Ileana are selected to form 3 debate teams – Team A, Team B and Team C - to participate in interschool competitions. The following information is known: Each team will have exactly 3 students and no student can be a part of more than one team Caesar cannot be selected in Team A if Ileana is not selected in Team A as well Andrew and Bach are in the same team and so are Elena and Grant Andrew and Caesar are not in the same team Bach and Ileana are not in the same team Drew and Elena are not in the same team

  In the previous question, in how many possible ways can the members of the other two teams be decided?

  A. One

  B. Two

  C. Three

  D. Four

  E. Six

  Correct Answer: C

  Continuing with the below general explanation:

  Nothing can be said about the teams in which D, F and H are present.

  We can only conclude that since A and C are not in the same team, A must be in Team A along with B.

  Thus, the teams are:

  

  Thus, the possible scenarios are:

  

  Or

  

  Or

  

• Question 5:

  In a school, 9 students, Andrew, Bach, Caesar, Drew, Elena, Fischer, Grant, Hughes, and Ileana are selected to form 3 debate teams – Team A, Team B and Team C - to participate in interschool competitions. The following information is known: Each team will have exactly 3 students and no student can be a part of more than one team Caesar cannot be selected in Team A if Ileana is not selected in Team A as well Andrew and Bach are in the same team and so are Elena and Grant Andrew and Caesar are not in the same team Bach and Ileana are not in the same team Drew and Elena are not in the same team

  If Grant and Ileana are in Team C, which of the following must be true?

  A. Caesar is in Team B

  B. Drew is in Team A

  C. Elena is in Team B

  D. Fischer is in Team C

  E. Hughes is in Team A

  Correct Answer: A

• Question 6:

  Seven friends, Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory sit in a VIP enclosure of a stadium to watch a football match. The seats in the enclosure form a 3 x 3 matrix, i.e. 3 rows (front, middle and last) with 3 seats in each row. The following information is known: Chad sits immediately beside Dolly Dolly sits in a row immediately behind the row in which Abe is sitting There is no one sitting on one side of Chad None of Elisa or Gregory sits immediately beside Abe Bob sits in the last row

  Which of the following statements is/are necessary to uniquely determine the seating arrangement of the seven friends?

  A. Abe sits in the same column as Chad and Bob with no one to his right

  B. There is no person sitting in front of Dolly

  C. There is no person sitting in front of Elisa

  D. Abe sits in the same column as Chad and Bob with no one to his right and Elisa has no person sitting in front of her

  E. Abe sits in the same column as Chad and Bob with no one to the right of Abe or Dolly

  Correct Answer: D

  Working with the options, we have:

  Option: Abe sits in the same column as Chad and Bob with no one to his right

  Since A is in the middle of the front row, E and G must be sitting in the last row. Thus, F must be sitting in

  the front row, to the left of A.

  Thus, we have the following arrangement:

  

  However, the position of D, E and G are not fixed. ?Insufficient Option: There is no person sitting in front of Dolly There is no information about the seating positions of A, B, E, G or F. ?Insufficient Option: There is no person sitting in front of Elisa This is possible if either E sits in the front row, or, E sits in the last row with no one in front of her. ?

  Insufficient

  Option: Abe sits in the same column as Chad and Bob with no one to his right and Elisa has no person sitting in front of her We observe that this is essentially the combination of 'Option Abe sits in the same column as Chad and

  Bob with no one to his right ' and 'Option There is no person sitting in front of Elisa'. Abe sits in the same column as Chad and Bob with no one to his right ' we already have:

  

  Since A has no one to his right, E must be sitting at the right end of the last row so that no one sits in front of her. Also, as a result, D must be sitting to the left of C.

  

  Thus, the seating arrangement can be completely defined. ?Sufficient

  Though we have the answer, let us still verify Option: Abe sits in the same column as Chad and Bob with

  no one to the right of Abe or Dolly.

  Since A is in the middle of the front row, E and G must be sitting in the last row. Thus, F must be sitting in

  the front row, to the left of A.

  Also, since there is no one sitting to the right of D, D must be on the extreme right of the middle row.

  Thus, we have the following arrangement:

  

  However, the position of E and G are not fixed. ?Insufficient

  General

  Let us name the people Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory as A, B, C, D, E, F, and G,

  respectively. We can see that there are 3 ?3 = 9 seats, but there are only 7 people. Thus, the only possible

  way of distributing the 7 people across the 3 rows is that 2 rows would have 2 members each and one row

  would have 3 members. However, the exact number of people in a particular row is not yet known and

  further analysis of the statements needs to be done.

  1st statement: C and D sit beside each other ... (i)

  3rd statement: The row in which C and D are sitting, has exactly 2 people sitting in it (since there is no one

  sitting on the other side of C) ... (ii)

  2nd statement: Since D sits in the row just behind A's row, the row where D (and C) sits must be either the

  middle or the last row

  5th statement: Since B sits in the last row and the row where C and D sits has only 2 people, C and D

  must be in the middle row ... (iii) Thus, it also follows that A must be in the front row ... (iv)

  4th statement: We know that neither E nor G sits beside A. Thus, there are 2 possible scenarios:

  If A is in the middle of the front row, none of E or G can sit in the front row; thus, they would sit in the last

  row ... (v)

  If A is at either end of the front row, only in that scenario can one of E or G also sits in the front row ... (vi)

  Thus, we have:

  

  Also, in the middle row, since C has D on one side and a vacant seat on the other, C must be in the middle position. Thus, we finally have:

  

  This is all that can be deduced from the main stem.

  To answer the questions, we need to use the additional information contained in each question.

• Question 7:

  Seven friends, Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory sit in a VIP enclosure of a stadium to watch a football match. The seats in the enclosure form a 3 x 3 matrix, i.e. 3 rows (front, middle and last) with 3 seats in each row. The following information is known: Chad sits immediately beside Dolly Dolly sits in a row immediately behind the row in which Abe is sitting There is no one sitting on one side of Chad None of Elisa or Gregory sits immediately beside Abe Bob sits in the last row

  If the row in which Frank sits has only 2 persons sitting, which of the following must be true?

  A. Frank sits in the last row

  B. Frank sits in the front row

  C. Bob and Elisa sit beside one another

  D. Bob and Frank sit beside one another

  E. Elisa and Gregory sit beside one another

  Correct Answer: B

  We know that the row in which Frank sits has only 2 persons sitting.

  Working with the options:

  Option [Frank sits in the last row] If F sits in the last row along with B (who is already sitting in the last row as well), there cannot be anyone else sitting in the last row; since there should be exactly 2 people in that row. Thus, A, G and E must sit in the front row, which is not possible. – False Option [Frank sits in the front row] If only F sits in the front row along with A, all among B, E and G must be in the last row. Since there is no contradiction for B, E and G in sitting together, this seating arrangement is correct. – True

  Though we have got the correct answer, let us still verify why the remaining choices are incorrect

  Option [Bob and Elisa sit beside one another] With B, E and G sitting together, we can have different arrangements in the last row: B-E-G or B-G-E or G-B-E, etc. Thus, B and E may or may not sit beside one another. Note that this is a 'must be true question,' not a 'may be true' question. – False Option [Bob and Frank sit beside one another] Since F sits in the front row and B is in the last row, they cannot sit beside one another. – False Option [Elisa and Gregory sit beside one another] From the same reasoning used for 'option C,' E and G may or may not sit beside one another. So, this option is not necessarily be true. – False

  General Let us name the people Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory as A, B, C, D, E, F, and G, respectively. We can see that there are 3 × 3 = 9 seats, but there are only 7 people. Thus, the only possible way of distributing the 7 people across the 3 rows is that 2 rows would have 2 members each and one row would have 3 members. However, the exact number of people in a particular row is not yet known and further analysis of the statements needs to be done.

  1st statement: C and D sit beside each other … (i)

  3rd statement: The row in which C and D are sitting, has exactly 2 people sitting in it (since there is no one sitting on the other side of C) … (ii)

  2nd statement: Since D sits in the row just behind A's row, the row where D (and C) sits must be either the middle or the last row

  5th statement: Since B sits in the last row and the row where C and D sits has only 2 people, C and D

  must be in the middle row … (iii) Thus, it also follows that A must be in the front row … (iv)

  4th statement: We know that neither E nor G sits beside A. Thus, there are 2 possible scenarios:

  If A is in the middle of the front row, none of E or G can sit in the front row; thus, they would sit in the last

  row … (v)

  If A is at either end of the front row, only in that scenario can one of E or G also sits in the front row … (vi)

  Thus, we have:

  

  Also, in the middle row, since C has D on one side and a vacant seat on the other, C must be in the middle position. Thus, we finally have:

  

  This is all that can be deduced from the main stem.

  To answer the questions, we need to use the additional information contained in each question.

• Question 8:

  Seven friends, Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory sit in a VIP enclosure of a stadium to watch a football match. The seats in the enclosure form a 3 x 3 matrix, i.e. 3 rows (front, middle and last) with 3 seats in each row. The following information is known: Chad sits immediately beside Dolly Dolly sits in a row immediately behind the row in which Abe is sitting There is no one sitting on one side of Chad None of Elisa or Gregory sits immediately beside Abe Bob sits in the last row

  If Elisa and Gregory do not sit in the same row, which of the following may be true?

  A. Dolly sits in the middle of the middle row

  B. Chad and Dolly do not sit immediately beside one another

  C. Gregory sits in the middle of the first row

  D. Abe sits in the middle of the front row

  E. Frank sits in the middle of the front row

  Correct Answer: E

  It is known that E and G sit in different rows, i.e. the front and back rows (since only C and D sit in the

  middle row).

  We also know from (v) and (vi):

  If A is in the middle of the front row, none of E or G can sit in the front row; thus, they would sit in the last

  row … (v)

  If A is at either end of the front row, only in that scenario can one of E or G also sit in the front row … (vi)

  Thus, (v) violates the given condition, implying that A sits at either the left or the right end of the front row,

  allowing one among E and G to sit at the other corner of the front row and the other to sit in the last row.

  Thus, we have:

  

  Or

  

  Working with the options: Option [Dolly sits in the middle of the middle row]: From the diagram, D can sit at either the right or the left end of the middle row, and not at the middle of the middle row. – False Option [Chad and Dolly do not sit immediately beside one another]: From the diagram, D can sit at either the right or the left end of the middle row and C must be in the center. So, C and D must be immediately beside one another. – False Option [Gregory sits in the middle of the first row]: Since A and G cannot sit together, and A sits at one end of the front row, G cannot take the middle seat of the front row – False Option [Abe sits in the middle of the front row]: We have already established that A sits at one end of the front row – False Option [Frank sits in the middle of the front row]: Since in the front row, A is at one end and E/G is at the other end, F can definitely sit in the middle of the front row. – True

  One such possible seating arrangement is shown below:

  

  General

  Let us name the people Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory as A, B, C, D, E, F, and G,

  respectively. We can see that there are 3 ?3 = 9 seats, but there are only 7 people. Thus, the only possible

  way of distributing the 7 people across the 3 rows is that 2 rows would have 2 members each and one row

  would have 3 members. However, the exact number of people in a particular row is not yet known and

  further analysis of the statements needs to be done.

  1st statement: C and D sit beside each other ... (i)

  3rd statement: The row in which C and D are sitting, has exactly 2 people sitting in it (since there is no one

  sitting on the other side of C) ... (ii)

  2nd statement: Since D sits in the row just behind A's row, the row where D (and C) sits must be either the

  middle or the last row

  5th statement: Since B sits in the last row and the row where C and D sits has only 2 people, C and D

  must be in the middle row ... (iii) Thus, it also follows that A must be in the front row ... (iv)

  4th statement: We know that neither E nor G sits beside A. Thus, there are 2 possible scenarios:

  If A is in the middle of the front row, none of E or G can sit in the front row; thus, they would sit in the last

  row … (v)

  If A is at either end of the front row, only in that scenario can one of E or G also sits in the front row … (vi)

  Thus, we have:

  

  Also, in the middle row, since C has D on one side and a vacant seat on the other, C must be in the middle position. Thus, we finally have:

  

  This is all that can be deduced from the main stem.

  To answer the questions, we need to use the additional information contained in each question.

• Question 9:

  Seven friends, Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory sit in a VIP enclosure of a stadium to watch a football match. The seats in the enclosure form a 3 x 3 matrix, i.e. 3 rows (front, middle and last) with 3 seats in each row. The following information is known: Chad sits immediately beside Dolly Dolly sits in a row immediately behind the row in which Abe is sitting There is no one sitting on one side of Chad None of Elisa or Gregory sits immediately beside Abe Bob sits in the last row

  Who sits in the middle seat of the middle row?

  A. Chad

  B. Dolly

  C. Either Chad or Dolly

  D. Any among Chad, Dolly or Elisa

  E. The seat is vacant

  Correct Answer: A

  From the figure below, it is definite that the person must be C.

  

  General

  Let us name the people Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory as A, B, C, D, E, F, and G,

  respectively. We can see that there are 3 ?3 = 9 seats, but there are only 7 people. Thus, the only possible

  way of distributing the 7 people across the 3 rows is that 2 rows would have 2 members each and one row

  would have 3 members. However, the exact number of people in a particular row is not yet known and

  further analysis of the statements needs to be done.

  1st statement: C and D sit beside each other ... (i)

  3rd statement: The row in which C and D are sitting, has exactly 2 people sitting in it (since there is no one

  sitting on the other side of C) ... (ii)

  2nd statement: Since D sits in the row just behind A's row, the row where D (and C) sits must be either the

  middle or the last row

  5th statement: Since B sits in the last row and the row where C and D sits has only 2 people, C and D

  must be in the middle row ... (iii) Thus, it also follows that A must be in the front row ... (iv)

  4th statement: We know that neither E nor G sits beside A. Thus, there are 2 possible scenarios:

  If A is in the middle of the front row, none of E or G can sit in the front row; thus, they would sit in the last

  row ... (v)

  If A is at either end of the front row, only in that scenario can one of E or G also sits in the front row ... (vi)

  Thus, we have:

  

  Also, in the middle row, since C has D on one side and a vacant seat on the other, C must be in the middle position. Thus, we finally have:

  

  This is all that can be deduced from the main stem.

  To answer the questions, we need to use the additional information contained in each question.

• Question 10:

  Seven friends, Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory sit in a VIP enclosure of a stadium to watch a football match. The seats in the enclosure form a 3 x 3 matrix, i.e. 3 rows (front, middle and last) with 3 seats in each row. The following information is known: Chad sits immediately beside Dolly Dolly sits in a row immediately behind the row in which Abe is sitting There is no one sitting on one side of Chad None of Elisa or Gregory sits immediately beside Abe Bob sits in the last row

  Who could be the respective persons sitting in the middle of the first and last rows?

  I. Bob and Gregory

  II. Frank and Gregory

  III.

  Abe and Elisa

  A.

  Only I

  B.

  Only II

  C.

  Only I and II

  D.

  Only II and III

  E.

  All of I, II and III

  Correct Answer: D

  We need the respective persons sitting in the middle of the first and last rows. Working with the statements, we have:

  Statement I: Bob and Gregory: Since B is sitting in the last row, this statement is false. Note that the question asks for the respective persons sitting in the middle of the first and last rows; thus, from the statement, the first person (As per the statement, Bob) belongs to the middle of the first row and the second person (As per the statement, Gregory) belongs to the middle of the last row.

  Statement II: Frank and Gregory: F can take the middle seat in the front row since F has no contradictions in sitting beside A. Also, Gregory can also sit in the middle of the last row since he too has no contradictions in sitting beside B. ?This statement can be true

  Statement III: Abe and Elisa: A can definitely be the person in the middle of the front row and E as a result, definitely must be in the last row (from (v)) and can also take the middle seat in that row. ?This statement can be true

  General Let us name the people Abe, Bob, Chad, Dolly, Elisa, Frank, and Gregory as A, B, C, D, E, F, and G, respectively. We can see that there are 3 ?3 = 9 seats, but there are only 7 people. Thus, the only possible way of distributing the 7 people across the 3 rows is that 2 rows would have 2 members each and one row would have 3 members. However, the exact number of people in a particular row is not yet known and further analysis of the statements needs to be done.

  1st statement: C and D sit beside each other ... (i)

  3rd statement: The row in which C and D are sitting, has exactly 2 people sitting in it (since there is no one sitting on the other side of C) ... (ii)

  2nd statement: Since D sits in the row just behind A's row, the row where D (and C) sits must be either the middle or the last row

  5th statement: Since B sits in the last row and the row where C and D sits has only 2 people, C and D must be in the middle row ... (iii) Thus, it also follows that A must be in the front row ... (iv)

  4th statement: We know that neither E nor G sits beside A. Thus, there are 2 possible scenarios: If A is in the middle of the front row, none of E or G can sit in the front row; thus, they would sit in the last row ... (v)

  If A is at either end of the front row, only in that scenario can one of E or G also sits in the front row ... (vi)

  Thus, we have:

  

  Also, in the middle row, since C has D on one side and a vacant seat on the other, C must be in the middle position. Thus, we finally have:

  

  This is all that can be deduced from the main stem.

  To answer the questions, we need to use the additional information contained in each question.