Test Prep Test Prep Certifications OAT Questions & Answers

• Question 171:

  Stefan's scores on his English essays were 75, 65, 80, 95, and 65. What is the average of his test scores?

  A. 66

  B. 71

  C. 65

  D. 76

  Correct Answer: D

  (75 + 65 + 80 + 95 + 65) / 5 = 76.

• Question 172:

  Express 8% as a fraction.

  A. 4/25

  B. 4/100

  C. 2/50

  D. 2/25

  Correct Answer: D

  8% = 8/100 = 2/25.

• Question 173:

  Which algebraic expression best represents the following statement: the number of books Brian read over the summer (B) is 2 less than 3 times the number of books his brother Adam read over the summer (A)?

  A. B = 3A - 2

  B. B = 3A + 2

  C. A = 3B - 2

  D. A = 3B + 2

  Correct Answer: A

• Question 174:

  If 8 people can eat 6 bags of chips, how many people will it take to eat 15 bags of chips?

  A. 22

  B. 18

  C. 16

  D. 20

  Correct Answer: D

  Use a proportion to solve the problem. 8/6 = x/15, 60 = 3x, x = 20.

• Question 175:

  What is the product of 0.34 × 0.06?

  A. 0.0204

  B. 2.04

  C. 0.204

  D. 20.4

  Correct Answer: A

  The product of 0.34 and 0.06 is 0.0204. Remember to count the number of places to the right of the decimal.

• Question 176:

  Two even integers and one odd integer are multiplied together. Which of the following could be their product?

  A. 3.75

  B. 9

  C. 16.2

  D. 24

  Correct Answer: D

  Integers include all positive and negative whole numbers and the number zero. The product of three integers must be an integer, so you can eliminate any answer choice that is not a whole number: choices

  (3.75) and (16.2). The product of two even integers is even. The product of even and odd integers is even. The only even choice is 24.

• Question 177:

  What is the value of r in the following equation?

  29 + r = 420

  A. r = 29/420

  B. r = 420/29

  C. r = 391

  D. r = 449

  Correct Answer: C

  29 + r = 420 29 + r - 29 = 420 ?29 r = 391

• Question 178:

  To begin making her soup, Jennifer added four containers of chicken broth with 1 liter of water into the pot. Each container of chicken broth contains 410 milliliters. How much liquid is in the pot?

  A. 1.64 liters

  B. 2.64 liters

  C. 5.44 liters

  D. 6.12 liters

  Correct Answer: B

  410 ml × times 4 containers = 1640 ml Change to liters: 1640 ÷ 1000 = 1.64 Add the liter that was already in the pot: 1.64 + 1 = 2.64 liters

• Question 179:

  A man decided to buy new furniture from Futuristic Furniture for $2600. Futuristic Furniture gave the man two choices: pay the entire amount in one payment with cash, or pay $1000 as a down payment and $120 per month for two full years in the financial plan. If the man chooses the financial plan, how much more would he pay?

  A. $1480 more

  B. $1280 more

  C. $1600 more D. $2480 more

  Correct Answer: B

  Multiply $120 by 24 months (a full two years) to get $2880. Add the thousand dollars for the down payment to get $3880. Find the difference between the entire amount all at once ($2600) and the amount paid in the plan ($3880). To find the difference, you subtract. The difference shows that $1280 more is paid with the installment plan.

• Question 180:

  What is the sum of the interior angles of a regular nonagon?

  A. 900°

  B. 1080°

  C. 540°

  D. 1260°

  E. 1440°

  Correct Answer: D

  The sum of interior angles for any regular shaped polygon can be determined with the following equation:

  (n − 2) × 180°

  Where n is # of sides. In this case, a nonagon is a 9-sided polygon. Plugging in 9 in the equation gives 1260° for all 9 sides combined. If asked for EACH angle, then you would just divide 1260° by 9.