PARCC Percent and Ratio 3 — Questions and Answers
Question 1: A car travels 150 miles using 5 gallons of gas. What is the rate in miles per gallon?
- 25 mpg
- 30 mpg (Correct answer)
- 35 mpg
- 20 mpg
Correct answer: 30 mpg
150 ÷ 5 = 30 miles per gallon.
Question 2: A jacket originally $80 is now $100 after a price increase. What is the percent increase?
- 20%
- 25% (Correct answer)
- 15%
- 30%
Correct answer: 25%
The $20 increase divided by $80 equals 0.25, or 25%.
Question 3: The ratio 12:18 reduced to lowest terms is:
- 3:4
- 2:3 (Correct answer)
- 4:6
- 6:9
Correct answer: 2:3
Dividing both by 6 gives 2:3.
Question 4: What is 120% of 50?
- 55
- 60 (Correct answer)
- 65
- 70
Correct answer: 60
120% of 50 = 1.2 × 50 = 60.
Question 5: In a class of 30 students, 40% are boys. How many boys are there?
- 10
- 12 (Correct answer)
- 15
- 18
Correct answer: 12
40% of 30 = 0.40 × 30 = 12.
Question 6: If 3 maps cover 12 square miles, how many square miles do 7 maps cover at the same rate?
- 21
- 24
- 28 (Correct answer)
- 35
Correct answer: 28
Each map covers 4 sq mi, so 7 × 4 = 28.
Question 7: A $250 item has a 6% sales tax. What is the total cost?
- $256
- $265 (Correct answer)
- $260
- $275
Correct answer: $265
Tax is 0.06 × 250 = $15, so total = $265.
PARCC Percent and Ratio 3
A car travels 150 miles using 5 gallons of gas.
What is the rate in miles per gallon?