Question

28 pumps can empty a reservoir in 18 hours. In how many hours can 42 such pumps do the same
work?
ook to complete a portion of a stadium in​

Answer 1

Answer:

28 pump can empty a Reservoir in 18 hours in how many hours can 42 such pumps do the same work ? Answer is equal to 12 hours

Step-by-step explanation:

Answer 2

Answer:

63 hours

Step-by-step explanation:

pumps = 28

time taken to get empty. = 18

1 pump get empty in 28/18

= 1.5 hrs

so, 42 pumps get empty in = 42×1.5

= 63 hours