Probability (10)

Each of the letters of the word ‘AUTHORIZES’ is written on identical circular discs
40 students enter for a game of shot-put competition
There are 25 discs numbered 1 to 25. They are put in a closed box and shaken thoroughly
Cards bearing numbers 2, 4, 6, 8, 10, 12, 14, 16, 18 and 20 are kept in a bag