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 = . Since coolie A takes less time than coolie B so power spent by coolie A is more than coolie B.