The number of ways is 10C5 = 10!/(5!*5!) = 10*9*8*7*6/(5*4*3*2*1) = 252
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There are 14C8 = 14*13*12*11*10*9/(6*5*4*3*2*1) = 3003 ways.
10 ways.10 ways.10 ways.10 ways.
5 for 2, 3 for 3, 2 for 4.
Assuming that zero cannot be used for the first digit then this can be selected from numbers 1 - 9 (9 choices), and the 2nd, 3rd and 4th digits from 0 - 9 (10 choices). The total number of different ways is : 9 x 10 x 10 x 10 = 9000.