NDA2022MathematicsProbabilityActual
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
Options
- A9: 4
- B35: 17
- C17: 35
- D4: 9
Correct answer
A. 9: 4
Step-by-step solution
Number of favorable outcomes (either spade or ace) =13+3=16 Number of unfavorable outcomes =52-16=36 aligned & Odds against his winnings = No. of unfavorable No. of favorable & = 36 16 =9: 4 aligned