Question

A cylindrical tank has a capacity of 6160mcube . find its depth if its radius is 14 m. Also find the cost of painting its curved surface at Rs 30 per m square.

Answer 1

Volume = pi × r^2 × h
6169 = 22/7 × 196 × h
Solving it will give u

10m = h

Csa = 2×pi × r × h
= 2 × 22/7 × 14 × 10
= 880sq.m

cost of painting = 880 × 30
= 26400 Rs