SOLUTION: one pump fills a tank 2 times as fast as another pump.If the pump works together they fill the tank in 8 minutes. How long does it take for each pump to fill the tank?
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Question 817842: one pump fills a tank 2 times as fast as another pump.If the pump works together they fill the tank in 8 minutes. How long does it take for each pump to fill the tank? Found 2 solutions by ewatrrr, richwmiller:Answer by ewatrrr(24785) (Show Source):
Hi,
one pump fills a tank 2 times as fast as another pump.
Let x and represent their rates
If the pumps work together they fill the tank in 8 minutes. |Multiplying thru by 8x so as all denominators = 1
8 + 4 = x
12min = x, the other pump takes 24min
You can put this solution on YOUR website! 8/60/x+8/60/2x=1
2/15/x+2/15/2x=1
2/15/x+1/15/x=1
3/15/x=1
1/5/x=1
1/5=x
12 minutes=x
24 minutes=2x
check
8/12+8/24=1
2/3+1/3=1
