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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