Multiple choice

A bag contain $5$ red and $3$ white and $2$ black. If a ball is picked at random, the probability that it is red is

  1. $\dfrac {1}{5}$
  2. $\dfrac {1}{2}$
  3. $\dfrac {3}{10}$
  4. $\dfrac {9}{10}$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total balls = 5 + 3 + 2 = 10. Number of red balls = 5. Probability = 5/10 = 1/2.

AI explanation

Apply the classical probability formula by dividing the number of red balls by the total number of balls. The bag contains 5 red balls and a total of 10 balls (5 red + 3 white + 2 black). The probability of picking a red ball is 5 divided by 10, which equals 1/2.

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