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Q.

A can finish a work in 18 days and B can do the same work in 15 days. B worked for 10 days and left the job. In how many days, A alone can finish the remaining work?


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a

5

b

512

c

6

d

8 

answer is C.

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Detailed Solution

A can finish the work in 18 days
B can do the work in 15 days
B Worked for 10 days and left the job. So, B’s 10 days work
Question ImageRemaining work
Question ImageNow, Question Image work done by A in 1 day.
Thus, A can do remaining work in 6 days.
Hence, Option (3) is the correct answer.
 
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