Find the average of the squares of the first 5 odd numbers.
1). 27
2). 29
3). 33
4). 35
We know that the first 5 odd numbers are 1, 3, 5, 7, 9
Sum of the squares of the five odd numbers = 12 + 32 +52 + 72 + 92 = 1 + 9 + 25 + 49 + 81 = 165
Average = Sum of all the numbers/Total numbers = 165/5 = 33
∴ Required Average = 33