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# A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball being a green ball

**Solution:**

Given, a bag contains 10 red, 5 blue and 7 green balls.

A ball is drawn at random.

We have to find the probability of getting a green ball.

Possible outcomes = 10 red ball + 5 blue ball + 7 green ball

Total number of possible outcomes = 10 + 5 + 7 = 22

The probability of getting a green ball is given by

There are 7 green balls in a bag

Number of favourable outcomes = 7

Number of possible outcomes = 22

Probability = number of favourable outcomes / number of possible outcomes

Probability = 7/22

Therefore, the probability of getting a green ball is 7/22.

**✦ Try This: **A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball not being a green ball.

**☛ Also Check: **NCERT Solutions for Class 10 Maths Chapter 14

**NCERT Exemplar Class 10 Maths Exercise 13.3 Problem 27(ii)**

## A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball being a green ball

**Summary:**

A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. The probability of this ball being a green ball is 7/22

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