A can do a piece of work in 15 days B does it in 10 days after 3 days B goes away in how many days they will complete the work together
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A can do a piece of work in 15 days B does it in 10 days after 3 days B goes away in how many days they will complete the work together
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After 3 days B goes away in how many days A will complete the work together
S o l u t i o n
A can do a piece of work in 15 days
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B can do the work in 10 days
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As we assumed that A can finish the remaining work in "m" days
Thus ,
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Number of days both worked together + Number of days A worked alone
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