A can finish a work in 7 days . B can finish the same work in 9 days . The days required to finish the work by both of them together.

A can finish a work in 7 days . B can finish the same work in 9 days .

1.	A can finish a work in 7 days . B can finish the same work in 9 days . The days required to finish the work by both of them together.
A.	31/16
B.	47/16
C.	63/16
D.	79/16
Answer» D. 79/16

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A can finish a work in 7 days . B can finish the same work in 9 days . The days required to finish the work by both of them together.

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