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P and Q together can do a work in 12 days. P alone can do the same work in 36 days. In how many days can Q alone complete two-third part of the same work?1. 182. 153. 214. 12 |
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Answer» Correct Answer - Option 4 : 12 Given: P + Q = 12 days P = 36 days Calculation: P + Q do a piece of work in =12 days Work is done by P + Q in 1 day =1/12 P can do the same work in 36 days Work is done by P in = 1/36 Work is done by both in 1 day = 1/36 +1/12 The efficiency of P and Q is 2 and 1 (3 – 1) Q alone complete two-third part of the same work = 36 × 2/3 = 24 Q complete the work of = 24/2 = 12 days Hence Q complete the work in = 12 days
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