GMAS Mathematics Content Areas 2 — Questions and Answers
Question 1: A rectangle has a length of 12 cm and a width of 8 cm. What is the area of the rectangle?
- 20 cm²
- 40 cm²
- 96 cm² (Correct answer)
- 192 cm²
Correct answer: 96 cm²
Area of a rectangle = length × width = 12 × 8 = 96 cm².
Question 2: Which of the following is equivalent to 3/4?
- 0.25
- 0.34
- 0.75 (Correct answer)
- 0.43
Correct answer: 0.75
3 ÷ 4 = 0.75, so 3/4 is equivalent to 0.75.
Question 3: A bag contains 5 red marbles, 3 blue marbles, and 2 green marbles. What is the probability of randomly selecting a blue marble?
- 1/5
- 3/10 (Correct answer)
- 3/5
- 7/10
Correct answer: 3/10
Probability = 3 blue ÷ (5+3+2) total = 3/10.
Question 4: Simplify the expression: 5x + 3y - 2x + y
- 3x + 4y (Correct answer)
- 3x + 2y
- 7x + 4y
- 7x + 2y
Correct answer: 3x + 4y
Combine like terms: (5x - 2x) + (3y + y) = 3x + 4y.
Question 5: What is the value of 2³ × 2²?
- 10
- 16
- 32 (Correct answer)
- 64
Correct answer: 32
2³ × 2² = 2^(3+2) = 2⁵ = 32.
Question 6: The table shows the number of books read by students: 2, 4, 3, 5, 6, 4, 3, 4. What is the mode?
- 3
- 4 (Correct answer)
- 3 and 4
- 3.875
Correct answer: 4
The mode is 4 because it appears 3 times, more than any other value.
Question 7: A store sells pencils for $0.25 each. How much would 16 pencils cost?
- $3.00
- $3.50
- $4.00 (Correct answer)
- $4.25
Correct answer: $4.00
16 × $0.25 = $4.00.
GMAS Mathematics Content Areas 2
A rectangle has a length of 12 cm and a width of 8 cm.
What is the area of the rectangle?