Question

20 pumps can empty a reservoir in 12 hours. in how many hours can 45 such pumps do the some work ?​

Answer 1

If 20 pumps can empty a reservoir in 12 hours. Then in unitary method takeout 1 then after that take out the 45 search firms and you will get the answer is 27 hours

Answer 2

Answer:

5.33 hours

Step-by-step explanation:

20 pumps can empty a reservoir in 12 hours

so, 1 pump can empty a reservoir in (12*20) = 240 hours

so, 45 pumps can empty a reservoir in (240/45) = 16/3 or 5.33 hours