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CBSE Class 9 Answered

A bag contains 12 balls out of which x are white. If one ball is taken out from the bag, find the probability of getting a white ball. If 6 more white balls are added to the bag and the probability now for getting a white ball is double the previous one, find the value of x.
Asked by Topperlearning User | 12 Dec, 2013, 10:11: AM
answered-by-expert Expert Answer

No. of white balls = x

Total no. of balls = 12

P(white ball) =

If 6 white balls are added:

Total balls = 18

White balls = x + 6

According to the question:

Answered by | 12 Dec, 2013, 12:11: PM

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