Question

Three workers P1, P2 and P3 got work from the contractor. In 30 days, ‘P1’ completed 30% of work. ‘P2’ is 20% less efficient than ‘P1’ but takes 5 days less than ‘P3’ to complete the work alone. Find the time taken by all three together to complete 33.4% of work.

A 17
B 16
C 13
D 12.4
E 10
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