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KVPY SA Exam 2012 Question Paper

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Question : 12

Total: 80

Two workers A and B are engaged to do a piece of work. Working alone, A takes 8 hours more to complete the work than if both worked together. On the other hand, working alone, B would need 4

hours more to complete the work than if both worked together. How much time would they take to complete the job working together?

4 hours
5 hours
6 hours
7 hours

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