WIAT Mathematical Problem Solving & Computation 2 — Questions and Answers
Question 1: A store sells 3 notebooks for $4.50. How much would 9 notebooks cost?
- $9.00
- $12.00
- $13.50 (Correct answer)
- $15.00
Correct answer: $13.50
Each notebook costs $1.50, so 9 × $1.50 = $13.50.
Question 2: What is the value of 7² − 3²?
- 16
- 32
- 40 (Correct answer)
- 58
Correct answer: 40
7² = 49 and 3² = 9, so 49 − 9 = 40.
Question 3: A recipe requires 2½ cups of flour. If you want to make 3 batches, how many cups of flour do you need?
- 5½ cups
- 6 cups
- 7 cups
- 7½ cups (Correct answer)
Correct answer: 7½ cups
2½ × 3 = 5/2 × 3 = 15/2 = 7½ cups.
Question 4: Which number is a prime number?
- 51
- 57
- 59 (Correct answer)
- 63
Correct answer: 59
59 has no factors other than 1 and itself, making it prime.
Question 5: A car travels 240 miles in 4 hours. At the same speed, how far will it travel in 6 hours?
- 320 miles
- 360 miles (Correct answer)
- 380 miles
- 400 miles
Correct answer: 360 miles
The speed is 60 mph, so in 6 hours the car travels 60 × 6 = 360 miles.
Question 6: What is 15% of 240?
- 24
- 30
- 36 (Correct answer)
- 40
Correct answer: 36
15% of 240 = 0.15 × 240 = 36.
Question 7: If n + 14 = 31, what is the value of n?
- 13
- 15
- 17 (Correct answer)
- 19
Correct answer: 17
Subtract 14 from both sides: n = 31 − 14 = 17.
WIAT Mathematical Problem Solving & Computation 2
A store sells 3 notebooks for $4.50.
How much would 9 notebooks cost?