A) 17
B) 12
C) 15
D) 13
Correct Answer: B
Solution :
Work of Ram and Shyam for 1 day \[=\frac{1}{8}\] |
Work of Ram and Shyam for 3 days \[=\frac{3}{8}\] |
\[\therefore \] Remaining work \[1-\frac{3}{8}=\frac{5}{8}\] |
\[\because \]\[\frac{5}{8}\]work is done by Shyam in 15 days |
\[\therefore \]1 work is done by Shyam \[=15\times \frac{8}{5}=24\,\,\text{days}\] |
\[\therefore \]Work of Shyam for 1 day \[=\frac{1}{24}\] |
\[\therefore \]Work of Ram for 1 day \[=\frac{1}{8}-\frac{1}{24}=\frac{1}{12}\] |
Hence, Ram alone will complete the work in 12 days. |
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