A cylindrical vessel of radius 3.5m is full of water. If 15400 litres of water is taken out from it, then the drop in the water level in the vessel will be ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 ie 40cm.
V = 15400
π r² h = 15400
(154/4) × h = 15400
h = (15400 × 4 )/154
h = 400
Drop = 40cm