A box contains 12 balls out of which x are black. If one ball is drawn at random from the box

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A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it was before. Find x.
06
Oct
A box contains 12 balls out of which x are black. If one ball is drawn at random from the box, what is the probability that it will be a black ball? If 6 more black balls are put in the box, the probability of drawing a black ball is now double of what it [...]
Posted in: Chapter 15 - Probability , Maths , NCERT Class 10 ,
Tags: A box contains 12 balls out of which x are black. If one ball is drawn at random from the box , the probability of drawing a black ball is now double of what it was before. Find x. , what is the probability that it will be a black ball? If 6 more black balls are put in the box ,