Question

A tank can be filled by 5 pipes in 80 minutes.How long it will take to fill the tank by 8 pipes of same size ?

Answer 1

5 pipes at = 80
1 pipes at = 80/5 = 16
8 pipes at = 16 × 8 = 128

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Answer 2

If 5 pipes can fill tank in 80 min,so first we need to find for 1 pipe it means
1pipe=80÷5=16
so 8 pipes can fill tank in 16×8=128
I wrote it clearly ok.
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