Question:
Ritwik draws a ball from a bag that contains white and yellow balls. The probability of choosing a white ball is 2/9. If the total number of balls in the bag is 36, find the number of yellow balls.
Solution:
From the question is given that,
Probability of choosing a white ball is = 2/9
The total number of balls in the bag is = 36
Number of white ball chosen = (2/9) × 36
= 8 white balls
Then, the number of yellow balls = Total balls in bag – number of white balls
= 36 – 8
= 28 yellow balls
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