A) 20 days
B) 40 days
C) 50 days
D) 60 days
Correct Answer: D
Solution :
[d] Work done by both in 1 days \[=\frac{1}{10}\] Work done by Raj in 1 day\[=\frac{1}{12}\] \[\therefore \] Work done by Ram in 1 day \[=\frac{1}{10}=\frac{1}{12}=\frac{6-5}{60}=\frac{1}{60}\] \[\therefore \]Ram alone can do the work in 60 days. |
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