A person P takes 4 hrs time to complete a job and Q takes 6 hrs to complete the same job if they work together how much time will they require to complete the job?

A person P takes 4 hrs time to complete a job and Q takes 6 hrs to

1.	A person P takes 4 hrs time to complete a job and Q takes 6 hrs to complete the same job if they work together how much time will they require to complete the job?
A.	1.2 hrs
B.	1.8 hrs
C.	2.4 hrs
D.	3.0 hrs
Answer» D. 3.0 hrs

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A person P takes 4 hrs time to complete a job and Q takes 6 hrs to complete the same job if they work together how much time will they require to complete the job?

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