OC Mathematical Reasoning 2 — Questions and Answers
Question 1: What is the area of a triangle with base 10 cm and height 6 cm?
- 30 sq cm (Correct answer)
- 60 sq cm
- 20 sq cm
- 16 sq cm
Correct answer: 30 sq cm
Area = ½ × base × height = ½ × 10 × 6 = 30 sq cm.
Question 2: Apples cost $0.75 each. How much do 12 apples cost?
- $8.00
- $8.50
- $9.00 (Correct answer)
- $9.50
Correct answer: $9.00
12 × $0.75 = $9.00.
Question 3: Which fraction is equivalent to 3/4?
- 6/10
- 9/12 (Correct answer)
- 12/20
- 6/9
Correct answer: 9/12
9/12 simplifies to 3/4 because both numerator and denominator are multiplied by 3.
Question 4: A box holds 24 crayons. How many boxes are needed for 180 crayons?
- 6
- 7
- 8 (Correct answer)
- 9
Correct answer: 8
180 ÷ 24 = 7.5, so 8 boxes are needed.
Question 5: What is the value of 2³ × 5?
- 25
- 30
- 40 (Correct answer)
- 50
Correct answer: 40
2³ = 8, and 8 × 5 = 40.
Question 6: What is the least common multiple (LCM) of 4 and 6?
- 8
- 10
- 12 (Correct answer)
- 24
Correct answer: 12
The smallest number divisible by both 4 and 6 is 12.
OC Mathematical Reasoning 2
What is the area of a triangle with base 10 cm and height 6 cm?