Number of ways in which 3 tickets can be selected from a set of 500
tickets numbered 1,2,3..., 500 so that the number on them are in arithmetic
progression is
500 (b) `^500 C_3`
(c) 62250
(d) None of these
A. 500
B. `.^(500)C_(3)`
C. `3996`
D. None of these
