SarkariPYQ

SSC CPO 2022 PYQ — Question 133

SSC CPO - 9 Nov 2022 - Shift 2 • Quantitative Aptitude • Q133

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A hemispherical bowl whose radius is 21 cm is full of ice cream. Find the volume of the ice cream. (take π = 227\frac{22}{7})

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Correct answer: D

Explanation

The correct answer is Option 4 i.e. 19404 cm3.

We know that,

Volume of hemisphere = 2/3 πr3 [r = radius]

Now, according to the question

A hemispherical bowl whose radius is 21 cm is full of ice cream

The volume of ice cream = The volume of the hemisphere

⇒ 2/3 πr3 

⇒ 2/3π × (21)3

⇒ 2/3 × 22/7 × 21 × 21 × 21

⇒ 2 × 22 × 21 × 21 = 19404

Therefore, the volume of the ice cream is 19404 cm3