Latest TCS Aptitude Question SOLUTION: 22. A tank has a leak, which would empty it in 8 hours. A tap is turned on which fills at the rate of 4 liters per minute and the tank is now emptied in 12 hours. Find the capacit

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22. A tank has a leak, which would empty it in 8 hours. A tap is turned on which fills at the rate of 4 liters per minute and the tank is now emptied in 12 hours. Find the capacity of the tank.
a) 5670 lit
b) 5760 lit
c) 6570 lit
d) 6750 lit

Asked In TCS rajendra prasad (9 years ago)

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Abu Taleb Shaikh  (9 years ago)

ans: b
1/8-1/x=1/12
x=24
capacity=4*60*24=5760

Is this solution Helpfull? Yes (11) | No (2)  

AIRI RANJAN MOHANTY  (9 years ago)

tank capacity=rate*time
=4*60*24
=5760

Is this solution Helpfull? Yes (4) | No (1)  

ATANU KUNDU  (9 years ago)

In 1 minute a tap fill the tank 4 litre
so,in 8 hours=(8*60)minute=480 minute a tap fill the tank (480*4)=1920 litre.
according to question 1920 litre will be emptied in 8 hours.
so,in 12 hours it will be emptied 2880 litre.
again,the tap fill the tank 4 litre in 1 minute.
so,in 12 hours=720 minutes the tap fill the tank (720*4)=2880 litre
so,according to question as the two works(filling the tank & empty the tank) are going on in 12 hours,so the capacity of the tank=(2880+2880)litre=5760litre

Is this solution Helpfull? Yes (3) | No   

Surit Datta  (9 years ago)

according to the question,
1/8 * 1/x = 1/12
solving we get,
x = 24
so total capacity is,
24*4*60 = 5760 lt.

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sourav saha  (7 years ago)

l.cm of 12,8=24
capacity=24*4*60

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