Question

A rectangular tank 15 m long and 11 m broad is required to receive entire liquid contents from a full cylindrical tank of internal diameter 21 m and length 5 m. find the least height of the tank that will serve the purpose.

Answer 1

Answer:

minimum height = 10.5 m

Step-by-step explanation:

Let height of tank be h

Given, l=15, b=11, r= 21/2, h=5

Volume of rectangular tank = Volume of cylindrical tank

lbh = πr²h

15×11×h = 22×21×21×5/7×2×2

h=11×3×21×5/2×15×11

h = 10.5 m