A) 9- days
B) 9- days
C) 9- days
D) 10 days
Correct Answer: C
Solution :
[c] A's 4 days work \[=\frac{1}{4}\] B's 4 days work \[=\frac{1}{3}\] C's 4 days work \[=1-\left( \frac{1}{4}+\frac{1}{3} \right)=\frac{5}{12}\] C's 1 day work \[=\frac{1}{4}\times \frac{5}{12}=\frac{5}{48}\] \[\Rightarrow \] C will do the work in \[\frac{48}{5}\] days i.e. \[9\frac{3}{5}\]days.You need to login to perform this action.
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