question_answer

Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked together. If B worked alone, he would need \[4\frac{1}{2}\] hours more to complete the job than they both working together. What time would they take to do the work together?

A) 4 hours

B) 5 hours

C) 6 hours

D) 7 hours        

E) None of these