Question

9. A and B together complete a piece of work in T
days. If A alone completes the work in T + 3 days
and B alone completes the piece of work in T + 12
days, what is T?
(S.B.I.P.O., 2008)
(a) 3 days
(b) 9 days
(c) 12 days
(d) Cannot be determined
(e) None of these​

Answer 1

Answer:

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