General Quantitative Aptitude Basics 5

Question 1

What is the median of the data set: 7, 15, 3, 22, 9, 11, 5?

Accepted Answer

9

Answer

Sorted: 3,5,7,9,11,15,22 — the middle (4th) value is 9.

Question 2

Two angles of a triangle are 45° and 75°. What is the third angle?

Accepted Answer

60°

Answer

Angles in a triangle sum to 180°; third angle = 180 − 45 − 75 = 60°.

Question 3

If a number is increased by 40% and then decreased by 40%, what is the net change?

Accepted Answer

−16%

Answer

1.4 × 0.6 = 0.84, meaning the number is 84% of the original — a 16% decrease.

Question 4

What is the HCF (GCD) of 72 and 96?

Accepted Answer

24

Answer

72 = 2³×3², 96 = 2⁵×3; HCF = 2³×3 = 24.

Question 5

A circle has a radius of 7 cm. What is its circumference? (Use π ≈ 22/7)

Accepted Answer

44 cm

Answer

Circumference = 2πr = 2 × (22/7) × 7 = 44 cm.

General Practice Test