engineering recuitment AAI ATC Junior Executive 2025 Mock Test Series Mathematics Probability Probability of Random Experiments
A card is drawn from a pack of 52 cards. A gambler bets that it is either a spade or an ace. The odds against his winning are
1
9 ∶ 4
2
35 ∶ 17
3
17 ∶ 35
4
4 ∶ 9