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mohan das

· started a discussion

· 1 Months ago

doubt (Question: 201496.0 )

can any one provide the answer to this question in LCM method.

Question:
A leak can empty a completely filled tank in 25 hours. The tank is full of water and a tap is opened which fills 3 litres of water per minute in the tank. the leak now takes 40 hours to empty the tank, then find the capacity of tank.
Options:
A) 8000 litre 
B) 9000 litre 
C) 12000 litre
D) 11000 litre
Solution:
Ans: (c)


Avinash

· commented

· 1 Months ago

1/25-1/x=1/40
x=1000/15
Therefore (1000/15) * 3*60 is the capacity of the tank
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