Math, asked by harshbagotia5215, 9 months ago

A cistem can be filled by one top in 4 hour and by another in 5 hour .How long will it take to fill if both taps are opened together?

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Answered by khyati2107

1

Answer:

20/9 hours OR 2.22 hours

Step-by-step explanation:

1/4 + 1/5 = 9/20

So the inverse of 9/20 is 20/9 hours.

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