IBPS SO Prelims Exam Model Paper 5

Given
Total numbers = 15
Formula used
P(E) =

Number‌of‌favourable‌outcomes

Total‌number‌of‌outcomes

Calculation
Let E is an event of winning a game
Total outcomes = 15 × 15
⇒ 225
Number of favorable outcomes (winning a game) = 15
P(E) =

15

225

⇒

1

15

Probability of not winning a game = 1 – (

1

15

)
⇒

14

15