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SSC CPO 2020 PYQ — Question 110

SSC CPO - 25 Nov 2020 - Shift 1 • Quantitative Aptitude • Q110

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 The radius of the base of a cylinder is 14 cm and its volume is 6160 cm3. The curved surface area (in cm2) is:
(Take  π=227π=\frac{22}{7})

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Correct answer: A

Explanation

The correct answer is Option 1 i.e 880​​​​​.

Given:

Radius of cylinder = 14 cm

The volume of the cylinder = 6160 cm2

Formula used:

The curved surface area of the cylinder = 2πrh

The volume of the cylinder = πr2h

Where,

r = radius of the cylinder

h = height of the cylinder

Now,

Height of the cylinder

⇒ πr2h = 6160

⇒ 22/7 × 14 × 14 × h = 6160

⇒ h = 10 cm

The curved surface area of the cylinder = 2 × (22/7) × 14 × 10 = 880 cm3