A) 10 days
B) 12 days
C) 15 days
D) 18 days
Correct Answer: C
Solution :
X's one day's work \[=\frac{1}{12}\] (X + Y)'s one day's work \[=\frac{3}{20}\] \[\therefore \]y's one day's work\[=\frac{3}{20}-\frac{1}{12}=\frac{4}{60}=\frac{1}{15}\] \[\therefore \]Number of day's taken by Y to complete the work =15 days.You need to login to perform this action.
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