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If a ball is drawn at random from a box containing 5 red, 5 blue and 5 white balls, what is the probability that the ball drawn is red or white?1/33/42/33/41/7

Question

If a ball is drawn at random from a box containing 5 red, 5 blue and 5 white balls, what is the probability that the ball drawn is red or white?1/33/42/33/41/7

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Solution

The total number of balls is 5 (red) + 5 (blue) + 5 (white) = 15 balls.

We are looking for the probability that the ball drawn is either red or white.

The number of favorable outcomes for this event is the number of red balls (5) plus the number of white balls (5), which equals 10.

Probability is calculated as the number of favorable outcomes divided by the total number of outcomes.

So, the probability that the ball drawn is red or white is 10 (red or white balls) / 15 (total balls) = 2/3.

This problem has been solved

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