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Some persons can do a piece of work in 84 days. Two times the number of such persons will do half of the same work in how many days?
कुछ व्यक्ति 84 दिनों में एक काम को पूरा कर सकते हैं। ऐसे व्यक्तियों की दुगनी संख्या कितने दिनों में आधा काम पूरा कर देगी ?

A

21 days

B

14 days

C

16 days

D

15days

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PINNACLE-WORK AND TIME-EXERCISE
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  11. A and B together can complete some work in 36 days, B and C together c...

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