2 years ago

9 pipes can fill a tank in 4 hours. How long will it take if there are 12 pipes of same

1 answer:

7 0

Answer:

3 hours

Step-by-step explanation:

9 pipes/4 hours= 3 pipes/1 hour

The rate the pipes fill a tank will change by 1 hour as there are 3 more pipes.

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