Question: Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if

Two workers A and B are engaged to do a work. A

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 hours more to complete the job than they both working together. What time would they take to do the work together? 1. 4 hours 2. 5 hours 3. 6 hours 4. 7 hours 5. None of these

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