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A tap can fill a tank in 10 minutes a...

A tap can fill a tank in 10 minutes and another can empty it in 6 minute. If the tank is already two fifths full and both the taps are opened together, will the tank be filled or emptied? How long will it take before the tank is either filled completely or emptied completely, as the case may be?

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RS AGGARWAL-PIPES AND CISTERNS-All Questions
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  2. A pipe can empty a tank  in 40 minutes. A second pipe with diame...

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  3. A tap can fill a tank in 10 minutes and another can empty it in 6 m...

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  4. A cistern has two taps which fill it in 12 minutes and 15 minutes r...

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  5. An electric pump can fill a tank in 3 hours because of a leak in th...

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  6. To pipes can fill a cistern in 14 hours and 16 hours respectively. ...

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  8. A tank is fitted with two inlet pipes A and B, and an outlet pipe C...

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  9. Two pipes A and B can fill a tank in 12 minutes and 15 minutes resp...

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  10. Pipes A and dB can completely fill a water tank in 4 hours and 5 ho...

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  11. A cistern has three pipes A, B and C. A and B can fill it in 3 hrs and...

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  12. Three pipes A, B and C are attached to a tank. A and B can fill  ...

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  13. Two pipes A and B can fill a tank in 24 minutes and 32 minutes resp...

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  14. A keg is fitted with 3 taps A, B and C. All the three taps, if ope...

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  15. In 1 minute 3/7 of a bucket is filled. The rest of the bucket can be...

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  16. The petrol tank of an automobile can hold g litres. If a litres was re...

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  17. Water is continuously supplied from a reservoir to a locality at th...

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  18. Two pipes A and B can fill a tank in 20 and 30 minutes respectively...

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  19. A pipe can fill a tank in x hours and another pipe can empty it in ...

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  20. A tap can completely fill a water tank in 8 hours. The water tank h...

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