Question

15 taps fill a tank in 32 minute. Time taken by 12 taps to fill the tank is

Answer 1

Well, the no. of taps required to fill the tank is inversely proportional to the time taken for them to fill the tank.

Since 15 taps fill the tank in 32 minutes, the constant of proportionality is 15 × 32 = 480.

This implies that a tap alone can fill the tank in 480 minutes, i.e., 8 hours.

So the tank can be filled by 12 taps in 480 / 12 = 40 minutes.

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