In a class 5, of a certain school, there are 30 girls and 10 boys. What is the fraction of boys in the class?

Answer
To find the fraction of boys in the class, we start by determining the total number of students in the class. There are 30 girls and 10 boys, so the total number of students is: Total Students = Number of Girls + Number of Boys Total Students = 30 + 10 = 40. Next, we find the fraction of boys by taking the number of boys and dividing it by the total number of students: Fraction of Boys = Number of Boys ÷ Total Students Fraction of Boys = 10 ÷ 40. Now, we simplify the fraction: 10 ÷ 40 = 1 ÷ 4 = 1/4. Thus, the fraction of boys in the class is 1/4. Therefore, the answer is B. 1/4.