Multiple Choice Questions

If A B and C together can finish a piece of work in 4 days A alone in 12 days and B in 18 days...........

Quantitative Aptitude (RRB NTPC) Time and work

If A, B and C together can finish a piece of work in 4 days. A alone in 12 days and B in 18 days, then C alone can do it in?

C = 1/4 - 1/12 – 1/18 = 1/9 => 9 days

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