COOP Quantitative Reasoning 2 — Questions and Answers
Question 1: A store sells notebooks for $3 each. If Maria buys 8 notebooks and pays with a $30 bill, how much change does she receive?
- $4
- $5
- $6 (Correct answer)
- $7
Correct answer: $6
8 × $3 = $24, and $30 − $24 = $6 change.
Question 2: A rectangle has a length of 12 cm and a width of 5 cm. What is its perimeter?
- 34 cm (Correct answer)
- 60 cm
- 17 cm
- 30 cm
Correct answer: 34 cm
Perimeter = 2(12 + 5) = 2 × 17 = 34 cm.
Question 3: If a number is multiplied by 6 and then divided by 3, the result is 18. What is the number?
- 6
- 9 (Correct answer)
- 12
- 3
Correct answer: 9
Let n × 6 ÷ 3 = 18, so 2n = 18, thus n = 9.
Question 4: What is 15% of 200?
- 25
- 30 (Correct answer)
- 20
- 35
Correct answer: 30
15% of 200 = 0.15 × 200 = 30.
Question 5: A train travels 240 miles in 4 hours. What is its average speed?
- 50 mph
- 60 mph (Correct answer)
- 55 mph
- 70 mph
Correct answer: 60 mph
Speed = Distance ÷ Time = 240 ÷ 4 = 60 mph.
Question 6: The ratio of boys to girls in a class is 3:4. If there are 28 students total, how many are boys?
- 12 (Correct answer)
- 14
- 16
- 18
Correct answer: 12
Boys = 3/(3+4) × 28 = 3/7 × 28 = 12.
Question 7: Which value is equivalent to 3² + 4²?
- 49
- 25 (Correct answer)
- 7
- 14
Correct answer: 25
3² + 4² = 9 + 16 = 25.
COOP Quantitative Reasoning 2
A store sells notebooks for $3 each.
If Maria buys 8 notebooks and pays with a $30 bill, how much change does she receive?