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Question

8 taps are fitted in a tank, some are water taps and the rest are outlet taps. Each water tap can fill the tank in 12 hrs and each outlet tap can empty it in 36 hrs. Find the ratio of the number of outlets to inlet water taps, if the whole tank can be filled in 3 hrs.

A
9:11
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B
5:3
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C
4:9
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D
3:5
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