Question
A can finish a work in 18 days and B can do he 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 ?
Answer: Option C
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B's 10 days work = `(1/15 xx 10) = 2/3` Remaining work =`(1 - 2/3) = 1/3`
Now , `1/18` work is done by A in 1 day.
`:.` `1/3` work is done by A in `(18 xx 1/3)` = 6 days.
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