The average of 10 numbers is 23. If each number is increased by 4, what will the new average be?

Question: The average of 10 numbers is 23. If each number is increased by 4, what will the new average be?

Solution:
Given,
Average of 10 numbers = 23
⇒ Sum/Total numbers = 23
⇒ Sum/10 = 23
∴ Sum of the 10 numbers = 230


If each number is increased by 4, the total increase = 4 × 10 = 40
New sum = 230 + 40 = 270


Therefore, the new average = 270/10 = 27