Question

6. A can do a certain job in 12 days. B is 60% more effi- cient than A. How many days does B alone take to do the same job.​

Answer 1

• Since B is 60% more efficient than A, the fraction of the total job completed on one day by B will be 60% more than that of A. Hence B finishes the job in 7.5 days

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