Question

There are 10 red, 5 blue and 20 black balls in a bag. A ball is drawn from the bag without looking into the bag. What is the probability of getting a blue ball?

Answer 1

Answer:

Step-by-step explanation:

Solution -

No. of red balls = 10

No. of blue balls = 5

No. of black balls = 20

n(S) = 35. (10+5+20=35)

Event A = To get a blue ball

n(A) = 5.

P(A) = n(A)/n(S)

P(A) = 5/35

P(A) = 1/7.

Ans. - Therefore the probability of getting a blue ball from the bag is (1/7).

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