AFQT Mathematics Knowledge 2

Question 1

What is the value of x if 3x - 7 = 14?

Accepted Answer

7

Answer

Adding 7 to both sides gives 3x = 21, so x = 7.

Question 2

A rectangle has a length of 12 cm and a width of 5 cm. What is its area?

Accepted Answer

60 cm²

Answer

Area of a rectangle = length × width = 12 × 5 = 60 cm².

Question 3

Which of the following is a prime number?

Accepted Answer

37

Answer

37 has no factors other than 1 and itself, making it prime.

Question 4

If a triangle has angles of 45° and 80°, what is the third angle?

Accepted Answer

55°

Answer

The sum of angles in a triangle is 180°, so 180 - 45 - 80 = 55°.

Question 5

Simplify: 4² + 3³

Accepted Answer

43

Answer

4² = 16 and 3³ = 27, so 16 + 27 = 43.

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