A) 6 days
B) 11 days
C) 10 days
D) 5 days
Correct Answer: D
Solution :
[d] Let, A leaves the work after x days. Then, according to the question,\[\frac{x}{30}+\frac{x+25}{36}=1\] \[\Rightarrow \] \[\frac{6x}{180}+\frac{5\,(x+25)}{180}=1\] \[\Rightarrow \] \[6x+5x+125=180\] \[\Rightarrow \] \[11x=180=125\]\[\Rightarrow \]\[11x=55\] \[\therefore \] \[x=5\,\text{days}\] |
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