64.
Amit & Ramesh together can do a piece,of work in 10 days. Ramesh & Ankit together can do it in 12 days. Ankit & Amit together can do it in 15 days. In how many days will they finish it if all the three work together?
A:
8 days
B:
4 days
C:
4.5 days
D:
9.5 days
The answer is:
A
