A) 10
B) 12
C) 8
D) 9
E) None of these
Correct Answer: B
Solution :
[b] Work done in 1st two days \[=\frac{1}{10}+\frac{1}{15}=\frac{3+2}{30}=\frac{1}{6}\] \[\therefore \] Number of days \[=2\times 6=12\]You need to login to perform this action.
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