Question

if 4/5 of water tank is filled in 1 hour,then how much time will be required to fill the rest of it?
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Answer 1

Hey!!

I assume you mean 4/5ths of the tank is filled in an hour. Let n be the tank capacity. Then:

4n/5=1 hour

n=1 hour x 5/4= 5/4ths hours

=1 1/4 hours

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Answer 2

Answer

5/4 hours or 75 minutes or 1 hour 15 minutes is the correct answer to your question.

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