In a school, there are 15 boys and 10 girls in class X. The average age of the boys is 16, while the average age of the girls is 15. Find the average age of the students in the class.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e, 15.6.
Total age of boys = 15 × 16 = 240 years
Total age of girls = 10 × 15 = 150 years
Total age = 240 + 150 = 390 years
Total students = 15 + 10 = 25 students
Average age of class = 390/25 = 15.6 years