Two coolies A and B do some work in time 1 minute and 2 minute respectively. The power spent is:

1. same by both coolies
2. is more by coolie A than by B
3. is less by coolie A than by B
4. nothing can be said

is more by coolie A than by B

Reason — Power spent = $\dfrac{\text{Work done}}{\text{time taken}}$.
Since coolie A takes less time than coolie B so power spent by coolie A is more than coolie B.