word problem math?

Question

water is coming in at a uniform rate due to a leak in a boat. some water has already leaked into the boat when the leak is detected. at this point with the leak continuing at the same uniform rater, 4 pumps, each of pumping power w units per minute, can pump the boat dry in 15 mins while 12 pumps, each of pumping power w units per minute, can pump the boat dry in 3 min. how many minutes would it take 3 pumps, each of pumping power w units per minute to pump the boat dry

Answer 1

12 mins