# If the fire engine uses 496 gallons of water to put out the fire, how much water will it have remaining?

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A fire engine travels six miles to a fire at a speed of 40 mph.

Its tank holds 500 gallons of water but has been leaking throughout the journey at a rate of 25 gallons per hour.

If the fire engine uses 496 gallons of water to put out the fire, how much water will it have remaining?

posted Jan 5, 2018

+1 vote

@ 40 mph, traveling 6 miles takes 6x60/40 = 9 minutes
@ 25 gallons per hour leak rate in 9 minutes tank has lost 25X9/60 = 3.75 gallons.
Water available at the Emergency location is 500 - 3.75 = 496.25
Water left after fire doused = 496.25 - 496 = 0.25 gallons.

+1 vote

They would have .25gal left, assuming they put out the fire instantaneously upon arriving, and not accounting for any time lost due to the periods of acceleration or deceleration. The place would probably burn down.

answer Jan 6, 2018 by anonymous

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