Entry Test MCQ :: Time and Work Problems

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A and B together can fill a ditch in 30 days while A alone can fill it in 50 days. If B does the work for only half a day daily how long will it take to fill the ditch by A and B?

[A].	25 days	[B].	67/2 days
[C].	75/2 days	[D].	32 days

Answer: Option C

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