From a cylindrical drum containing oil and kept vertical, the oil leaking at the rate of `10cm^(3)//
Channel: Doubtnut
Date: 2020-05-24

From a cylindrical drum containing oil and kept vertical, the oil leaking at the rate of `10cm^(3)//s.` If the radius of the durm is 10 cm and height is 50 cm, then find the rate at which level of oil is changing when oil level is 20cm.