Question

two taps A and b can fill a tank in 6 and 9 hours respectively another tab C can be empty tank in 12 hours how long will they take to fill the tank if all the three are opened simultaneously

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Answer 1

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MATHS

Two taps A and B fill an overhead water tank in 12 hours and 8 hours respectively. If both of them are opened together, how long would they take to fill the tank completely?

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ANSWER

Tap A fills 1 tank in 12hours

Tap A fills 1 tank in 1hour=

12

1

Tap B fills 1 tank in 8hours

Tap B fills 1 tank in 1hour=

8

1

Work done by both the tap =

12

1

+

8

1

=

24

2+3

=

24

5

It will take

5

24

=4

5

4

hours, if both of them are opened together.