BMST BMST - Basic Math and Science Fractions, Decimals, and Number Operations Questions and Answers 4 — Questions and Answers
Question 1: A recipe calls for 2¾ cups of flour. If you want to make 1½ times the recipe, how many cups of flour do you need?
- 3¾ cups
- 4 cups
- 4⅛ cups (Correct answer)
- 4½ cups
Correct answer: 4⅛ cups
2¾ × 1½ = 11/4 × 3/2 = 33/8 = 4⅛ cups.
Question 2: Which decimal is equivalent to 5/8?
- 0.58
- 0.625 (Correct answer)
- 0.65
- 0.875
Correct answer: 0.625
5 ÷ 8 = 0.625.
Question 3: What is 0.004 × 0.03?
- 0.00012 (Correct answer)
- 0.0012
- 0.012
- 0.12
Correct answer: 0.00012
4 × 3 = 12, and the total decimal places are 3 + 2 = 5, giving 0.00012.
Question 4: Simplify: 3/5 ÷ 9/10
- 2/3 (Correct answer)
- 27/50
- 10/15
- 3/2
Correct answer: 2/3
3/5 ÷ 9/10 = 3/5 × 10/9 = 30/45 = 2/3.
Question 5: A tank holds 12.5 gallons. If it is 40% full, how many gallons does it contain?
- 4.5 gallons
- 5 gallons (Correct answer)
- 5.5 gallons
- 7.5 gallons
Correct answer: 5 gallons
12.5 × 0.40 = 5 gallons.
Question 6: What is the least common denominator (LCD) of 1/4, 1/6, and 1/9?
- 18
- 24
- 36 (Correct answer)
- 72
Correct answer: 36
The LCD of 4, 6, and 9 is 36 because it is the smallest number divisible by all three.
Question 7: Round 7.4852 to the nearest hundredth.
- 7.48
- 7.49 (Correct answer)
- 7.5
- 7.485
Correct answer: 7.49
The hundredths digit is 8; the next digit is 5, so round up to 7.49.
