NCDAP Arithmetic 2 — Questions and Answers
Question 1: A store sells apples for $1.25 each. How much do 8 apples cost?
- $9.00
- $10.00 (Correct answer)
- $10.50
- $8.00
Correct answer: $10.00
8 × $1.25 = $10.00.
Question 2: What is the least common multiple (LCM) of 4 and 6?
- 24
- 12 (Correct answer)
- 8
- 10
Correct answer: 12
The smallest number divisible by both 4 and 6 is 12.
Question 3: Simplify the fraction 18/24.
- 3/4 (Correct answer)
- 2/3
- 6/8
- 9/12
Correct answer: 3/4
Dividing numerator and denominator by their GCF of 6 gives 3/4.
Question 4: A tank holds 120 gallons. It is 3/8 full. How many gallons are in the tank?
- 40 gallons
- 45 gallons (Correct answer)
- 48 gallons
- 36 gallons
Correct answer: 45 gallons
120 × (3/8) = 360/8 = 45 gallons.
Question 5: What is 0.375 expressed as a fraction in lowest terms?
- 3/7
- 3/8 (Correct answer)
- 37/100
- 1/3
Correct answer: 3/8
0.375 = 375/1000, which reduces to 3/8.
Question 6: If 5 workers complete a job in 6 days, how many days would 3 workers take to do the same job?
- 8 days
- 9 days
- 10 days (Correct answer)
- 12 days
Correct answer: 10 days
Total worker-days = 5 × 6 = 30; 30 ÷ 3 workers = 10 days.
Question 7: A car travels 195 miles on 6.5 gallons of gas. What is the fuel efficiency in miles per gallon?
- 28 mpg
- 30 mpg (Correct answer)
- 32 mpg
- 25 mpg
Correct answer: 30 mpg
195 ÷ 6.5 = 30 miles per gallon.
NCDAP Arithmetic 2
A store sells apples for $1.25 each.
How much do 8 apples cost?