GKT GKT Mathematics and Numeracy 1 — Questions and Answers
Question 1: What is the value of π (pi) rounded to two decimal places?
- 3.12
- 3.14 (Correct answer)
- 3.16
- 3.18
Correct answer: 3.14
Pi (π) equals approximately 3.14159, which rounds to 3.14 at two decimal places.
Question 2: What is 15% of 200?
- 20
- 25
- 30 (Correct answer)
- 35
Correct answer: 30
To find 15% of 200, multiply 200 × 0.15 = 30.
Question 3: What is the square root of 144?
- 10
- 11
- 12 (Correct answer)
- 13
Correct answer: 12
The square root of 144 is 12 because 12 × 12 = 144.
Question 4: If a store offers 20% off a $50 item, what is the sale price?
- $30
- $35
- $40 (Correct answer)
- $45
Correct answer: $40
20% of $50 equals $10, so the sale price is $50 − $10 = $40.
Question 5: What is the perimeter of a rectangle with a length of 8 and a width of 5?
- 13
- 20
- 26 (Correct answer)
- 40
Correct answer: 26
Perimeter = 2 × (length + width) = 2 × (8 + 5) = 2 × 13 = 26.
Question 6: Which of the following numbers is a prime number?
- 15
- 21
- 27
- 29 (Correct answer)
Correct answer: 29
29 is prime because its only factors are 1 and 29; the other options are all divisible by 3.
GKT GKT Mathematics and Numeracy 1
What is the value of π (pi) rounded to two decimal places?