2 years ago in Time and Work

If one pipe A can fill a tank in 20 minutes, then 5 pipes, each of 20% efficiency of A, can fill the tank in:

[A] 80 min
[B] 100 min
[C] 20 min
[D] 25 min
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Subhojit Saha
Subhojit Saha - 8 months ago

Subhojit Saha from Haldia, India is saying 20 min is correct answer

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