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A Bag contains 7 black & 6 white balls , one ball is dream randomly, find the probability of getting either a black or a white ball. 
1. 2
2. 1
3. 3
4. 4
5. 5

1 Answer

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Best answer
Correct Answer - Option 2 : 1

Given

Number of black balls = 7

Number of white balls = 6

Formula used

P(E) = Number of favourable outcomes/Total number of outcomes

Calculation

Probability of getting black ball = 7/13

Probability of getting white ball = 6/13

Required probability = (7/13) + (6/13)

⇒ 1

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