Question

The average age of a group of 10 students is 20 years. If 4 more students join the group, the average age increases by 2 year. What is the average age of the new students

Answer 1

Answer:

27

Step-by-step explanation:

The average age of 10 students is 20.

The sum of ages of 10 students = 10*20=200

if 4 students join the group, the average age increases by 2 years.

then, the sum of ages of 14 students will be

14*22=308

The sum of ages of 4 students will be

308-200=108

The average age of 4 students will be

108/4=27

Answer 2

Answer:

Step-by-step explanation: