Multiple choice

A ball is drawn at random random from a box containing $4$ red balls and $7$ white balls, what is the probability that the ball drawn is red?

  1. $\displaystyle\frac{1}{2}$
  2. $\displaystyle\frac{4}{11}$
  3. $\displaystyle\frac{7}{11}$

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

There are 4 red balls and 7 white balls, so the total number of balls is 11. The probability of drawing a red ball is the number of red balls divided by the total, which is 4/11.

AI explanation

The box contains 4 red balls and 7 white balls, giving a total of 11 balls. Using the classical probability formula, the probability of drawing a red ball is the number of red balls divided by the total number of balls. This gives a probability of 4/11.

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