BMST Mathematics 5 — Questions and Answers
Question 1: What is the value of 5³ − 4²?
- 109 (Correct answer)
- 9
- 100
- 121
Correct answer: 109
5³ = 125 and 4² = 16; 125 − 16 = 109.
Question 2: A worker earns $18 per hour and works 37.5 hours in a week. What is the worker's weekly pay?
- $657.50
- $675.00 (Correct answer)
- $625.00
- $700.00
Correct answer: $675.00
18 × 37.5 = 675, so the weekly pay is $675.00.
Question 3: What is the median of the data set: 7, 12, 3, 9, 15, 5, 11?
- 9 (Correct answer)
- 7
- 11
- 8.86
Correct answer: 9
Sorted: 3, 5, 7, 9, 11, 12, 15 — the middle (4th) value is 9.
Question 4: Which fraction is equivalent to 0.375?
- 3/8 (Correct answer)
- 3/7
- 5/8
- 1/3
Correct answer: 3/8
0.375 = 375/1000 = 3/8 when reduced by dividing numerator and denominator by 125.
Question 5: Two angles are supplementary. One angle measures 67°. What is the measure of the other angle?
- 113° (Correct answer)
- 23°
- 123°
- 293°
Correct answer: 113°
Supplementary angles sum to 180°; 180° − 67° = 113°.
Question 6: Simplify: (3a²b)(4ab³)
- 12a³b⁴ (Correct answer)
- 7a³b³
- 12a²b³
- 7a²b⁴
Correct answer: 12a³b⁴
Multiply coefficients (3×4=12) and add exponents for like bases: a^(2+1)=a³ and b^(1+3)=b⁴.
Question 7: A recipe calls for 2½ cups of flour for 24 cookies. How many cups are needed to make 60 cookies?
- 6¼ cups (Correct answer)
- 5 cups
- 7½ cups
- 6 cups
Correct answer: 6¼ cups
Scale factor = 60/24 = 2.5; 2.5 × 2.5 = 6.25 = 6¼ cups.
What is the value of 5³ − 4²?