The average of 12 numbers is 15 and the average of the first two numbers is 14. What is the average of the remaining numbers?

15 15.2 14 14.2

15.2

Sum of 12 numbers = 12×15= 180 Sum of first two = 14×2=28 Now sum of rest 12–2= 10 numbers are = 180–28 = 152 Therefore average of rest numbers = \(\frac{152}{10}\)= 15.2