28 pumps can empty a reservoir in 18 hours. In how many hours can 42 such pumps do the same work.
Answers
Answered by
17
Answer:
12hrs
Step-by-step explanation:
28 pumps take 18hours.
So, If 1 Pump will take
28×18 hours
= 504 hours
Hence 42 pumps will take 504/42= 12 hours
Answer is 12 hours
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