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A is thrice as good a workman as B, and takes 10 days less to do a piece of work than B takes. How many days will B take to complete, if he works alone?

Correct Answer: 15

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Math MCQ: A is thrice as good a workman as B, and takes 10 days less to do a piece of work than B takes. How many days will B take to complete, if he works alone? | Extra Education