Here, total number of cards = 100
(i) Card drawn with number = 50
Favourable outcomes = 1
Total number of outcomes = 100
∴ P = 1/100
(ii) Card drawn with number = 80
Favourable outcomes = 1
Total number of outcomes = 100
∴ P = 1/100
(iii) Card drawn with number = 40
Favourable outcomes = 1
Total number of outcomes = 100
∴ P = 1/100