Question

P and Q individually can complete the work in 38 days and 57 days respectively. If the time taken by R alone to complete the work is 1.25 times the time taken by P and Q together to complete the work, find the time taken by R to complete the work while working alone.

A 16.5 days
B 19.5 days
C 27 days
D 28.5 days
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