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S, T and U together can complete a work ...

S, T and U together can complete a work in 30 days. If the ratio of efficiency of S, T and U is 20 : 15:12 respectively, then in how many days U alone can complete the same work?

A

`(195)/(2)`

B

`(235)/(2)`

C

`(225)/(2)`

D

`(215)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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KIRAN PUBLICATION-TIME AND WORK-TYPE-IV
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