Stanford Achievement Test Stanford Achievement (Math) 2 — Questions and Answers
Question 1: A rectangular garden is 12 feet long and 8 feet wide. What is its perimeter?
- 20 feet
- 96 feet
- 40 feet (Correct answer)
- 24 feet
Correct answer: 40 feet
Perimeter = 2 × (length + width) = 2 × (12 + 8) = 40 feet.
Question 2: If a store sells apples for $0.75 each, how much do 8 apples cost?
- $5.50
- $6.00 (Correct answer)
- $6.25
- $7.00
Correct answer: $6.00
8 × $0.75 = $6.00.
Question 3: Which fraction is equivalent to 3/4?
- 6/10
- 9/12 (Correct answer)
- 4/6
- 8/14
Correct answer: 9/12
9/12 simplifies to 3/4 because both numerator and denominator are multiplied by 3.
Question 4: A train travels at 60 miles per hour. How far does it travel in 2.5 hours?
- 120 miles
- 130 miles
- 150 miles (Correct answer)
- 175 miles
Correct answer: 150 miles
Distance = speed × time = 60 × 2.5 = 150 miles.
Question 5: What is 15% of 200?
- 25
- 30 (Correct answer)
- 35
- 40
Correct answer: 30
15% of 200 = 0.15 × 200 = 30.
Question 6: A box contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of randomly picking a blue marble?
- 1/5
- 3/10 (Correct answer)
- 1/3
- 2/5
Correct answer: 3/10
Probability = 3 blue ÷ 10 total = 3/10.
Question 7: Which number is a prime number?
- 21
- 27
- 29 (Correct answer)
- 33
Correct answer: 29
29 is prime because it has no factors other than 1 and itself.
Stanford Achievement Test Stanford Achievement (Math) 2
A rectangular garden is 12 feet long and 8 feet wide.
What is its perimeter?