Fill in the blanks to make the statements true:

If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is …………. hours.


12 pumps can empty a reservoir in 20h.


1 pump can empty in 20 × 12 i.e. 240h.


Then, 45 pumps can empty the same reservoir in




5× 60 + 20


5h 20min


25
1