Question

A barrel can be filled in 1 hr by 6 taps flowing at the same rate. how long will it take for 4 such taps to fill the barrel?

Answer 1

it will take 90 minutes.
            60/4=15
     there are 2 taps
   60+15+15=90 min

Answer 2

Given:

• A barrel can be filled in 1 hr by 6 taps flowing at the same rate.

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Find:

• How long will it take for 4 such taps to fill the barrel?

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Calculations:

=> x = 1/6

=> x = 1.5

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=> 1.5 × 4 = 6 or

=> 1.5 + 1.5 + 1.5 + 1.5 = 6

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=> 60 × 6 = 360

=> 360/4 = 90 mins.

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Hence, 90 mins is the time to fill 4 such taps barrel.