A bag contains a number of black and white balls of same shape and size. A ball is drawn at random f

Question

A bag contains a number of black and white balls of same shape and size. A ball is drawn at random from the bag. Let $x$ be the probability that the ball drawn is black and $y$ be the probability that the ball drawn is white. If $x=4y$, find $x$.

Accepted Answer

$x=\frac45$

Probability in a Bag with Two Types of Balls

Probability in a Bag with Two Types of Balls

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