Ravi, Rohan and Rajesh alone can complete a work in 10, 12 and 15 days respectively. In how many days can the work be completed, if all three work together?
A. 4 days
B. 5 days
C. 3 days
D. 8 days
Answer:A
Ravi, Rohan and Rajesh alone can complete a work in 10, 12 and 15 days respectively. In how many days can the work be completed, if all three work together?
A. 4 days B. 5 days C. 3 days D. 8 days