A) \[3\frac{1}{7}\] days
B) \[9\frac{1}{7}\] days
C) \[4\frac{1}{7}\] days
D) \[5\frac{1}{7}\] days
Correct Answer: D
Solution :
One day work of A and \[B=\frac{1}{9}+\frac{1}{12}=\frac{7}{36}\] So, they can complete the work in \[\frac{36}{7}\] i.e., \[5\frac{1}{7}\] days.You need to login to perform this action.
You will be redirected in
3 sec