Question

14 pumps are of equal capacity can fill a tank in 6 days if the tank as to be filled in 4 days, than find the number of extra pumps needed?

Answer 1

QUESTION :
14 pumps are of equal capacity can fill a tank in 6 days if the tank as to be filled in 4 days, than find the number of extra pumps needed?

SOLUTION :
This is a problem related to inverse variation since a decrease in the number of days means increase in the Number of pumps.

In 6 days Number of pump can fill a tank = 14
In 1 day Number of pump can fill a tank = 14 × 6 = 84
In 4 days Number of pump can fill a tank = 84/4= 21

the number of extra pumps needed = 21 - 14 = 7 pumps .

Hence, the number of extra pumps needed is 7.

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Answer 2

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