A and B together can do a piece of work in 12 days, B and C together in 15 days and C and A together in 20 days. In how many days, can A, B and C together do it ? (a) 5 days (b) 10 days (c) 24 days (d) 30 days
2 7511Railway recruitment board (Chennai) loco pilot recruitment examination 2006 & 2005&2004 question papers.
16 31757Post New Metro Interview Questions
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