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Two workers 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 9/2 hours more than when work together. The time required to finish the work together is: 

(a) 5 hours 

(b) 8 hours 

(c) 4 hours 

(d) 6 hours

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Correct option (d) 6 hours


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