The average of 8 numbers is 12. If a number Y is added to each of these 8 numbers, then the average becomes 16. What is the value of Y ?
Answer & explanation
Correct answer: option 2
Difference in average = 16 - 12 = 4
Increment in average is 4 . That means 4 is added to each of the 8 number .
So , Value of Y = 4