Question

P is twice as efficient as q. q takes 12 days to complete a job. if both of them work together how much time will they tabke to complete the job

Answer 1

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Answer 2

Answer:

4 days

Step-by-step explanation:

q takes 12 days to complete a job.

P is twice as efficient as q.

So, P will complete work in days = $\frac{12}{2}=6$

q can do a part of work in 1 day = $\frac{1}{12}$

P can do a part of work in 1 day =  $\frac{1}{6}$

Together they can do a part of work in 1 day= $\frac{1}{6}+\frac{1}{12}$

                                                              = $\frac{1}{4}$

They can do  $\frac{1}{4}$ work in days = 1

They can do complete work in days = 4

Hence they will take 4 days to complete the job