Question

A coolie takes two minutes to raise a box from platform to train. Another coolie takes 1 minute, work done is​

Answer 1

Given - Amount of time taken by coolie one and two to raise a box is 2 minutes and 1 minute respectively.

Find - Work done by both the coolie.

Solution - Work done is given by the formula W = P*t, where W is work done, P is power and t is time.

For coolie 1, Work done = P*2 = 2P.

For coolie 2, Work done = P*1 = P.

Hence, the work done by coolie 1 and 2 is 2P and P respectively or 2:1 in the form of ratio.