Question

If a bag has 5 blue balls , 1 yellow ball and 2 green balls. ( the balls are identical in all respects other than color) and a ball is drawn from bag without looking into the bag, then the probability of getting a non yellow ball is

Answer 1

Answer:

did the question last year, forgot this year

Answer 2

No. of Blue Balls = 5

No. of Yellow Balls = 1

No. of Green Balls= 2

Therefore, total no. of Balls in the bag = 5+1+2 = 8

Now,

P(non-yellow ball) = (Total no of balls)/(Total no of non-yellow balls)

P(non-yellow balls) = 8/7

Thus, the required answer is 8/7.

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