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A Bag Contains 3 White, 5 Black and 2 Red Balls, All of the Same Shape and Size. a Ball is Drawn from the Bag Without Looking into It, Find the Probability that the Ball Drawn Not a Black Ball. - Mathematics

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Question

A bag contains 3 white, 5 black and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn  

 not a black ball.

Solution

Total number of balls=3+5+2=10 

Total number of events =p(n)=10 

There are 3+2=5 balls which are not black 

favourable number of event=P(A)=5

Hencwe, P (not getting a black ball)= `"P(A)"/"P(n)"=5/10=1/2` 

  Is there an error in this question or solution?
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APPEARS IN

 Selina Solution for Concise Mathematics for Class 10 ICSE (2020 (Latest))
Chapter 25: Probability
Exercise 25(A) | Q: 2.5 | Page no. 386
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Solution A Bag Contains 3 White, 5 Black and 2 Red Balls, All of the Same Shape and Size. a Ball is Drawn from the Bag Without Looking into It, Find the Probability that the Ball Drawn Not a Black Ball. Concept: Sample Space.
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