Question

A bag contains 3 black, 2 brown, 4 blue balls. What is the probability of getting a brown ball?

(a) \(\frac {1}{9}\)

(b) \(\frac {7}{9}\)

(c) \(\frac {2}{9}\)

(d) \(\frac {4}{9}\)

I had been asked this question by my school principal while I was bunking the class.

This intriguing question comes from Theoretical Approach to Probability topic in division Probability of Mathematics – Class 10

Answer 1

The correct option is (c) \(\frac {2}{9}\)

The best I can explain: Total number of outcomes = 3 + 2 + 4 = 9

Favorable outcomes of getting a brown ball = 2

P(E) = \(\frac {Number \, of \, favorable \, outcomes}{Total \, number \, of \, outcomes} = \frac {2}{9}\)