SSC CGL 2022 PYQ — Question 68

SSC CGL - 02 Dec 2022 - Shift 2 • Quantitative Aptitude • Q68

If the diameter of a hemisphere is 28 cm, then what is the volume of hemisphere?

Show answer & explanation

Correct answer: A

Explanation

The correct answer is Option 1. i.e. 5749.33 cm3.

Given:

Diameter of hemisphere = 28 cm

Concept Used:

Volume of hemisphere=23πr3Volume\ of\ hemisphere = {2 \over 3} \pi r^3    ...(i)

Explanation:  

Radius = ½ × diameter = ½ × 28 = 14cm

Now, using equation (i), we get

Volume of hemisphere = 23×227×(14)3{2 \over 3}\times {22 \over 7} \times (14)^3 = 5749.33 

Hence the volume of the given hemisphere is 5749.33 cm3.