can some one check this,is this the right way of solving?
regarding the 2nd test case 2 3 4 1
since t4 is 1, the possible outcomes after chef discarding 1 ticket is (1,3,4) with prob. (2/9)
prob. of winning is (1/8)+(4/8)(1/7)+(4/8)(3/7)(1/6)+(4/8)(3/7)(2/6)(1/5)+(4/8)(3/7)(2/6)(1/5)(1/4)
.(1/8) --->a winning ticket is picked up in the first turn
.(4/8)*(1/7)---->T-3 ticket in the first turn and a winning next
.(4/8)(3/7)(1/6)---->T-3 tickets in the first two turns followed by a winning ticket
.(4/8)(3/7)(2/6)*(1/5)----->T-3 tickets in the first three turns followed by a winning ticket
.(4/8)(3/7)(2/6)(1/5)(1/4)------>T-3 tickets in the first four turns followed by a winning ticket
the other two possible outcomes are (2,2,4) and (2,3,3) when i do this type of solving, the total prob. i am getting is >1. how to approach this problem??????