X is 3 times as fast as Y and is able to complete the work in 40 days less than Y. Then the time in which they can complete the work together is

X is 3 times as fast as Y and is able to complete the work in 40 da

1.	X is 3 times as fast as Y and is able to complete the work in 40 days less than Y. Then the time in which they can complete the work together is
A.	15 days
B.	10 days
C.	8 days
D.	5 days
Answer» B. 10 days

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X is 3 times as fast as Y and is able to complete the work in 40 days less than Y. Then the time in which they can complete the work together is

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