A, B and C can complete a piece of work in 15, 30 and 40 days respectively. They started the work together and A left 2 days before the completion of the work and B left 4 days before the completion of the work. In how many days was the work completed?

Options

A. `10(13)/15`
B. 12
C. 15
D. `10(2)/15`

Answer

D