The average age of 25 students in a class in 14 years. Five new students with an average age of 14.6 years join this class. what is the average age of 30 students in the class?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 14.1 years.
Sum of age = Average age × Number of students
According to the given question,
Sum of ages of 25 students = 25 × 14 = 350
Sum of ages of 5 new students = 5 × 14.6 = 73
Sum of ages of all 30 students = 350 + 73 = 423
Average = 423/30 = 14.1 years