Question

A bag has 7 balls; 2 red, 3 blue and 2 green. What is the probability of picking a red ball from bag?

(a) \(\frac{1}{7}\)

(b) \(\frac{2}{7}\)

(c) \(\frac{1}{4}\)

(d) \(\frac{1}{6}\)

I got this question in unit test.

I'm obligated to ask this question of Data Handling in chapter Data Handling of Mathematics – Class 8

Answer 1

Correct choice is (b) \(\frac{2}{7}\)

Explanation: A bag has 7 balls; 2 red, 3 blue and 2 green. When a ball is picked from bag, it can be of red, blue or green. There are 2 red balls. Hence, the probability of picking a red ball from the bag is \(\frac{2}{7}\).