A machine P completes a certain amount of work in 12 hrs and machine Q completes the same work in x hrs if both machines works together to complete the same work in 8 hrs then what is x?

A machine P completes a certain amount of work in 12 hrs and machin

1.	A machine P completes a certain amount of work in 12 hrs and machine Q completes the same work in x hrs if both machines works together to complete the same work in 8 hrs then what is x?
A.	12 hrs
B.	18 hrs
C.	24 hrs
D.	32 hrs
Answer» D. 32 hrs

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A machine P completes a certain amount of work in 12 hrs and machine Q completes the same work in x hrs if both machines works together to complete the same work in 8 hrs then what is x?

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