X can do a work in 40 days. He worked for 8 days and then Y finished it in 16 days. If they work together, how long does it take to finish the work?

X can do a work in 40 days. He worked for 8 days and then Y finished i

1.	X can do a work in 40 days. He worked for 8 days and then Y finished it in 16 days. If they work together, how long does it take to finish the work?
A.	10 1/3 days
B.	18 1/3 days
C.	13 1/3 days
D.	15 1/3 days
Answer» D. 15 1/3 days

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X can do a work in 40 days. He worked for 8 days and then Y finished it in 16 days. If they work together, how long does it take to finish the work?

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