Question 105

P can do a piece of work in 9 days. Q is 50% more efficient than P. The number of days it takes for Q to do the same piece of work is

Solution

P can do a piece of work in 9 days.

let efficiency of p is 100%

then efficiency of Q will be 150%

let Q can do the same piece of work in x days.

work is constant. so

efficiency*no of days = constant

100*9 = 150*x

x = 6.

answer is option D.

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