Question

P can do a piece of work in 21 days. Q is 40 percent more efficient than P. Then in how many days the work gets completed when both are working simultaneously?

Answer 1

Step-by-step explanation:

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Answer 2

Given; that P can do a piece of work in 21 days. Q is 40 percent more efficient than P.

To Find; how many days the work gets completed when both are working simultaneously

Solution; P can do work on days= 21

The efficiency of p = x

The efficiency of Q  = 1.4x

Ratios

x/21=1.4x/y

1/21=1.4/y

y=21*1.4=29.4

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