The capacity of a cylindrical tank is 38,500 litres. If the heights is 4 metres, then what is the diameter of the base?

Correct option is B

Given:

Capacity of cylindrical tank (V) = 38,500 litres = 38.5 m³

Height (h) = 4 metres

Formula used:

Volume of cylinder V = πr²h

Where, r = radius

Solution:

38.5 = πr²× 4

=> r²= $$\frac{38.5}4\times​π$$​​

=> r² = 3.07

=> r = $$\sqrt{3.07}$$​​

=> r = 1.75 m

Diameter = 2 × r

=> Diameter = 2 × 1.75

=> Diameter = 3.5 m

Thus, the correct answer is (B).