Multiple choice

An urn contains 3 white and 5 black balls. One ball is drawn. What is the probability that it is black?

  1. required probability $=\dfrac{3}{8}$
  2. required probability $=1$
  3. required probability $=\dfrac{5}{8}$

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The total number of balls is 3 white + 5 black = 8. The probability of drawing a black ball is the number of black balls divided by the total number of balls, which is 5/8.

AI explanation

The total number of balls in the urn is the sum of white and black balls, which is 3 plus 5 to equal 8 balls. The probability of drawing a black ball is calculated by dividing the number of black balls by the total number of balls. This gives the calculation 5 divided by 8. The required probability is 5/8.

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