A,B and C alone can do a work in 40 days,25 days and 50 days respectively. A started the work alone and after X days C joined him and after ( X+4 ) days B joined them. The work was completed in y days
which of the following can be the value of x and y respectively?
A) 12,22
B) 5.6,17.6
C) 26,32
1
Only A and B
2
Only B and C
3
Only C
4
Only A, B and C
5
Only B