Multiple choice

A bag contains 7 white balls and 10 black balls. A ball is drawn at random. The probability that ball drawn is black is

  1. $\dfrac{1}{17}$
  2. $\dfrac{7}{17}$
  3. $\dfrac{10}{17}$
  4. $\dfrac{5}{17}$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Total balls = 7 + 10 = 17. Black balls = 10. Probability = 10/17.

AI explanation

The total number of balls in the bag is 7 white balls + 10 black balls = 17 balls. The number of favorable outcomes for drawing a black ball is 10. Therefore, the probability of drawing a black ball is 10/17.