Question

Arijit, Benny, and Chetna together can complete a work in 12 days. If the ratio of the efficiency of Arijit, Benny, and Chetna is 8:5:6, respectively, then find the time taken by Arijit alone to complete the whole work.

A 18.5 days
B 25 days
C 20.5 days
D 28.5 days
E none of these
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