Question 862928
An electric pump can fill a tank in 3 hours. Because of a leak in the tank, it took 3 hours 30 min to fill the tank. The leak can drain out all the water of the tank in
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1/3=rate of pump to fill tank by itself with no leak
1/x=rate of leak which empties the full tank by itself
1/3.5=rate at which tank is filled with pump and leak working.
{{{1/3-1/x=1/3.5}}}
LCD:3x
x-3=3x/3.5
3.5x-10.5=3x
0.5x=10.5
x=21
The leak can drain out all the water of the tank in 21 hrs