Two persons P and Q together can complete a work 'Y' in ( x + 12 ) (x+12) ( x + 12 ) days, while Q and R together can complete the same work i...

Banking IBPS PO Mains Medium Simplification MCQ

Question

Two persons P and Q together can complete a work 'Y' in $(x+12)$ days, while Q and R together can complete the same work in $(y - 2)$ days. If P, Q, and R together can complete the work 'Y' in $\frac{6x}{y - 7}$ days, find by what percentage the efficiency of Q is more or less than the efficiency of P.

Given from previous data:

$x = 12$
$y = 14$

Options

80%

120%

100%

150%

work and timeefficiencyratiopercentagebanking exam

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Two persons P and Q together can complete a work 'Y' in ( x + 12 ) (x+12) ( x + 12 ) days, while Q and R together can complete the same work i...