Question

It takes 2 hour for 6 pipes to fill a tank. How much time will be needed to fill 10 such tanks if 12 pipes are used ?
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Answer 1

Step-by-step explanation:

6 pipes fill tank in 2 hrs

1 pipe fill tank in 6×2 hrs

12 pipe fill tank in 6×2/12 hrs

= 1 hour

time taken for 12 pipes to fill 10 tanks = 10 × 1= 10 hrs