ASVAB - Arithmetic Reasoning Questions and Answers with Certified Solutions

ASVAB - Arithmetic Reasoning Questions and Answers with Certified Solutions Dana receives $30 for her birthday and $15 for cleaning the garage. If she spends $16 on a CD, how much money does she have left? A. $29 B. $27 C. $24 D. $12 (A) Add the amount of money received and subtract the amount spent. $30 + $15 - $16 = $29. In a manufacturing plant that produces new computers, a 0.15 probability exists that a computer will be defective. If five computers are manufactured, what's the probability that all of them will be defective? A. 7.6 B. 0.60 C. 0.000076 D. 0.00042 (C) The probability that all five computers will be defective is 0.15 × 0.15 × 0.15 × 0.15 × 0.15 = 0.0000759 (round up to 0.000076). A house contains one 12-foot-×-14-foot bedroom, one 12-foot-×-10-foot bedroom, and one 8-foot-×-12-foot bedroom. What's the total amount of carpeting needed to carpet all three bedrooms? A. 384 square yards B. 42 2/3 square yards C. 216 square yards D. 88 square yards (B) Find the area of each bedroom and add them together: 12 × 14 = 168; 12 × 10 = 120; 8 × 12 = 96. 168 + 120 + 96 = 384 square feet. Then, because 9 square feet make up a square yard, divide the total area in square feet by 9 to determine the number of square yards needed: 384 ÷ 9 = 42 2/3 square yards. If 4 people can run 8 machines, how many machines can 2 people run? A. 2 B. 1 C. 4 D. 3 (C) Two people is 1⁄2 as many as 4 people: 2 ÷ 4 = 1⁄2. Multiply the number of machines 4 people can run by 1⁄2 to determine how many machines 2 people can run: 8 × 1⁄2 = 4. The product of two consecutive odd numbers is 399. What are the numbers? A. 17 and 19 B. 19 and 21 C. 21 and 23 D. 25 and 27 The fastest way to solve this would be to simply multiply the possible choices together (19 × 21 = 399). You can also solve this with algebra. Let x equal the first number and x + 2 the second number. x(x + 2) = 399 x^2 + 2x = 399 (Note: This is a quadratic equation that can be