Ram, Shyam and Mohan can do a piece of work in 12, 15 and 20 days respectively. How long will they take to finish it together?

Ram, Shyam and Mohan can do a piece of work in 12, 15 and 20 days r

1.	Ram, Shyam and Mohan can do a piece of work in 12, 15 and 20 days respectively. How long will they take to finish it together?
A.	5 days
B.	6 days
C.	7 days
D.	8 days
Answer» B. 6 days

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Ram, Shyam and Mohan can do a piece of work in 12, 15 and 20 days respectively. How long will they take to finish it together?

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