A can do 1/4th part of the work in 10 days, B can do 40% of the work in 40 days and C can do 1/3rd of the work in 13 days. Who will complete the work first?
A). A
B). B
C). C
D). A and C both
C
The whole work is done by A in 4 × 10 = 40 days
B can do the whole work in 40/40 × 100 days = 100 days
C can do the whole work in 3 × 13 = 39 days.
Therefore, the 1st person to complete the work is C.