Question

There are 149 consecutive even numbers and their average is 150, then find the average of second and second last number is?
1. 149
2. 149.5
3. 150
4. 152

Answer 1

Correct Answer - Option 3 : 150

Given:

There are 149 consecutive even numbers and their average is 150

Concept Used:

When number of observations are odd, then average is same for first and last, second and second last, third and third last,……., so on.

Calculation:

From concept above, the average of second and second last number is 150.