Question

Six pumps working together empty a tank in 28 minutes.
And how many such pumps are needed to empty the tank
in 24 minutes?

Answer 1

Answer:

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Answer 2

Answer:

7 pumps

Step-by-step explanation:

This is a case of inverse proportion :-

Given :-

28 minutes are taken :- 6 pumps

1 minute :- 6 × 28 pumps ( We will require more pumps to empty a tank in just 1 minute )

24 minutes :- $\frac{(6 * 28 )}{24}$ :- 7 pumps