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?
Answer & explanation
Correct answer: option 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