How much time will it take to fill the water tank of 80 cm x 60 cm x 50 cm?

A water pump has a capacity to fill water at 10 liters per second. How much time will it take to fill the water tank of 80 cm x 60 cm x 50 cm?
(a) 12 Seconds
(b) 24 Seconds
(c) 36 Seconds
(D) 48 seconds

Anurag Mishra Professor Asked on 9th June 2016 in Maths.
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1 Answer(s)

Answer: (b) 24 Seconds

Solution:-
The depth, width and length  of a tank = 80 cm. 50 cm and 60 cm. 
Then, the volume of the tank = 80 x 50 x 60 
 = 240,000 cm^3

As we know that, 1000 cm^3 = 1 lit
Therefore, 240,000 cm^3 = 240,000/1000
 = 240 liters 

A pump has a capacity to fill water at 10 liters/sec 
Then,  Time taken by pump to fill the tank = 240/10
 = 24 sec. 

Hence, the correct answer is option (b) 24 seconds. 

Anurag Mishra Professor Answered on 9th June 2016.
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