Question

7 identical taps can fill a tank in 70 min then time will be taken for 5 such taps to fill that tank

Answer 1

Answer:7 pipes fills 3 tanks in 45 minutes

7 pipes fills 1 tank in 15 minutes

1 pipe fills 1 tank in 105 minutes

5 pipes fills 1 tank in 21 minutes

Time to fill 3 tanks with 7 pipes = 45 minutes so 45/3 =15 minutes= time to fill one tank with 7 pipes

7 pipes can fill one tank in 15 minutes so 1 pipe will take 7 times as long = 105 minutes

If 1 pipe fills 1 tank in 105 minutes, then 5 pipes will take 1/5 as long, or 21 minutes

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