A cylinder has radius of 7cm and its volume is 1540cm^3, what

a-cylinder-has-radius-of-7cm-and-its-volume-is-1540cm-3-what

A cylinder has radius of 7cm and its volume is 1540cm^3, what is the height of the cylinder? (Take π = \(\frac{22}{7}\))

A. 10cm

B. 14cm

C. 11cm

D. 15cm

This question was posed to me in an online interview.

The origin of the question is Volume of a Cylinder in section Surface Areas and Volumes of Mathematics – Class 9

Correct answer is A. 10cm

The best I can explain: Volume of a cylinder having radius r and height h is equal to πr^2h.

πr^2h = 1540

\(\frac{22}{7}\) * 7 * 7 * h = 1540

h = 10cm.