Two worker A and B are engaged to do a piece of work. A working alone would take

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Two worker A and B are engaged to do a piece of work. A working alone would take 8 hours more to complete the work that when work together. If B worked alone, would take $${\text{4}}\frac{1}{2}$$ hours more than when working together. The time required to finish the work together is = ?

Options:

A . 5 hours

B . 8 houras

C . 4 hours

D . 6 hours

Answer: Option D

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