1.

A can do 40% of a work in 12 days, whereas B can do 60% of the same work in 15 days. Both works together for 10 days. C completes the remaining work alone in 4 days. A, B and C together will complete 28% of the same work in∶

A. 3 days
B. 2 days
C. \(2\frac{1}{2}\)days
D. \(1\frac{1}{2}\) days
Answer» C. \(2\frac{1}{2}\)days


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