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A bag contains $3$ red balls, $5$ black balls and $4$ white balls. if A ball is drawn at random from the bag. Then What is the probability that the ball drawn is: (i) white? (ii) red?
A bag contains $3$ red balls, $5$ black balls and $4$ white balls. if A ball is drawn at random from the bag. Then What is the probability that the ball drawn is: (i) white? (ii) red?
CBSE | Class 10 | Exercise 13.1 | Maths | Probability | RD Sharma
A bag contains $3$ red balls, $5$ black balls and $4$ white balls. if A ball is drawn at random from the bag. Then What is the probability that the ball drawn is: (i) white? (ii) red?

Given that A bag contains $3$ red, $5$ black and $4$ white balls

to find: Probability of getting a

(i) White ball

(ii) Red ball

(iii) Black ball

(iv) Not red ball

So, Total number of balls $3+5+4=12$

(i) Total number of white balls is $4$

We know that the Probability = Number of favorable outcomes/ Total number of outcomes

Therefore, the probability of getting a white ball $=4/12=1/3$

(ii) Total number red balls are $3$

We know that the Probability = Number of favorable outcomes/ Total number of outcomes

Therefore, the probability of getting a red ball $=3/12=1/4$

i

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