A alone completes a job in x days, and B alone completes it in y days.

Question

A alone completes a job in x days, and B alone completes it in y days. When they work together, they finish 3/20 of the job per day. If A and B worked together for 5 days and A needed to work independently for the additional 3 days to complete the job, what is the value of x + y?

A. 20
B. 21
C. 25
D. 27
E. 29

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If A works a job alone, it takes x days. If B does it alone, it takes y days. If A and B work together, they can do \(\frac{3}{20}\) of the total amount of the job per day. A and B worked together for 5 days, and A worked the rest for 3 days. What is the value of \(x + y\)?

VivekSri · Answer

OA is D

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A alone completes a job in x days, and B alone completes it in y days.

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GMAT Problem Solving (PS) Questions

A alone completes a job in x days, and B alone completes it in y days.

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