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A keg is fitted with 3 taps A, B and C....

A keg is fitted with 3 taps A, B and C. All the three taps, if opened together can drain the full keg in `1 1/2` minutes. Tap B and C together take 2 minutes to drain the keg while taps and C together take `2 4/(13)` minutes to drain it. How long will taps A and B together take to drain the keg?

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RS AGGARWAL-PIPES AND CISTERNS-All Questions
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  13. A pipe can fill a tank in 3 hours. There are two outlet pipes from ...

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  14. In what time would a cistern be filled by three pipes whose diamete...

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  15. A tap can fill a tank in 6 hours. After half the tank is filled, th...

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  16. A cistern has two pipes. One can till it with water in 8 hours and ...

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  17. A vessel has three pipes connected to it two to supply liquid and o...

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  18. Two pipes A and B can separately fill a cistern in 60 minutes and 7...

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