BSEP Fractions, Decimals, and Percentages 4 — Questions and Answers
Question 1: A jar has 12 red marbles and 8 blue marbles. What percent of the marbles are blue?
- 8%
- 40% (Correct answer)
- 48%
- 60%
Correct answer: 40%
8 out of 20 total = 8/20 = 0.40 = 40%.
Question 2: Which decimal is equivalent to 7/20?
- 0.07
- 0.35 (Correct answer)
- 0.70
- 3.5
Correct answer: 0.35
7/20 = 35/100 = 0.35.
Question 3: What is 5/6 × 3/10?
- 1/4 (Correct answer)
- 15/60
- 8/16
- 1/3
Correct answer: 1/4
5/6 × 3/10 = 15/60 = 1/4 in lowest terms.
Question 4: A student scored 18 out of 24 on a quiz. What is the score as a percentage?
- 65%
- 70%
- 75% (Correct answer)
- 80%
Correct answer: 75%
18/24 = 0.75 = 75%.
Question 5: What is 0.05 × 100?
- 0.5
- 5 (Correct answer)
- 50
- 500
Correct answer: 5
Multiplying 0.05 by 100 moves the decimal two places right: 5.
Question 6: A price drops from $80 to $60. What is the percent decrease?
- 20%
- 25% (Correct answer)
- 33%
- 40%
Correct answer: 25%
Decrease = $20; 20/80 = 0.25 = 25%.
Question 7: What is the value of 2 1/2 + 1 3/4?
- 3 1/4
- 4 1/4 (Correct answer)
- 3 3/4
- 4 3/4
Correct answer: 4 1/4
2 1/2 = 2 2/4; 2 2/4 + 1 3/4 = 3 5/4 = 4 1/4.
