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Get Success Point Coaching is best Coaching for SSC, Railway, Bank Po, CTET and all Competition Exams. Webmade.in
15/03/2016
Question:
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is:
A.1/4 B. 1/10
C.7/15 D.8/15
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