1.

A alone would take 6 hours more to complete the job than if both A and B would work together. When B worked alone he took 1.5 hours more to complete the job and A and B worked together. How much time they will take if they if they work together?

A. 3 hours
B. 4 hours
C. 4.5 hours
D. 5 hours
E. None of these
Answer» B. 4 hours


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