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# What is the probability that a student chosen at random out of 3 girls and 4 boys is a boy?

**Solution:**

Given, there are 7 students out of which 3 are girls and 4 are boys.

We have to find the probability of a student chosen at random is a boy.

__Probability__ can be defined as the __ratio__ of the number of favorable outcomes to the total number of outcomes of an event.

Probability = number of favourable event/number of possible event

Total number of students = 7

Favourable event = choosing a boy at random

Total number of favourable event = 4

Probability of choosing a boy = 4/7

Therefore, the required probability is 4/7.

**✦ Try This: **What is the probability that a student chosen at random out of 6 girls and 4 boys is a girl

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 3

**NCERT Exemplar Class 7 Maths Chapter 3 Problem 61**

## What is the probability that a student chosen at random out of 3 girls and 4 boys is a boy

**Summary:**

The probability that a student chosen at random out of 3 girls and 4 boys is a boy, is 4/7.

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