SAT Problem Solving & Data Analysis 2 — Questions and Answers
Question 1: A recipe for 12 cookies requires 3 cups of flour. How many cups of flour are needed for 30 cookies?
- 7.5 (Correct answer)
- 6
- 9
- 10
Correct answer: 7.5
Flour scales proportionally: 3 cups ÷ 12 cookies × 30 cookies = 7.5 cups.
Question 2: A shirt originally priced at $40 is marked down by 25%. What is the sale price?
- $30 (Correct answer)
- $35
- $32
- $28
Correct answer: $30
25% of $40 is $10, so the sale price is $40 − $10 = $30.
Question 3: If 5 workers can paint a fence in 8 hours, how long would it take 10 workers at the same rate?
- 4 hours (Correct answer)
- 16 hours
- 2 hours
- 8 hours
Correct answer: 4 hours
Total work is 40 worker-hours, so 10 workers finish in 40 ÷ 10 = 4 hours.
Question 4: A car travels 150 miles in 3 hours. At this rate, how far does it travel in 5 hours?
- 250 miles (Correct answer)
- 200 miles
- 300 miles
- 225 miles
Correct answer: 250 miles
The rate is 50 mph, so in 5 hours it travels 50 × 5 = 250 miles.
Question 5: The ratio of cats to dogs at a shelter is 3:5. If there are 24 cats, how many dogs are there?
- 40 (Correct answer)
- 30
- 45
- 15
Correct answer: 40
Each ratio unit equals 24 ÷ 3 = 8, so dogs = 5 × 8 = 40.
Question 6: A population of 200 bacteria doubles every hour. How many bacteria are there after 3 hours?
- 1600 (Correct answer)
- 800
- 600
- 1200
Correct answer: 1600
200 × 2³ = 200 × 8 = 1600 bacteria after 3 hours.
Question 7: What is 15% of 80?
- 12 (Correct answer)
- 15
- 8
- 20
Correct answer: 12
0.15 × 80 = 12.
SAT Problem Solving & Data Analysis 2
A recipe for 12 cookies requires 3 cups of flour.
How many cups of flour are needed for 30 cookies?