Question

In a class there are 15 boys and 10 girls. One student is selected at random. What is the probability that the selected student is a girl?
1. 3/5
2. 4/5
3. 2/5
4. 1/5

Answer 1

Correct Answer - Option 3 : 2/5

Given:

Number of boys is 15 

Number of girls is 10 

Number of selected student at random is 1

Calculation:

Total no. of students,

⇒ 15 (boys) + 10 (girls) = 25 

Probability of the selected girl,  

⇒ Number of girls/Number of total students

⇒ 10/25

⇒ 2/5

∴ 2/5 is the probability that the selected student is a girl.