Find the average of squares of consecutive odd numbers from 1 to 31.

M4maths Previous Puzzles

03 Nov 2021 Average

Find the average of squares of consecutive odd numbers from 1 to 31.

OPtion

1. 245
2. 314
3. 355
4. 366
5. 341
6. 326
7. 402
8. 385
9. 399
10. None of the above

Solution

The required average = n (n + 2) / 3
= 31 ( 31 + 2 ) 3
= 31 x 33 / 3
= 341.

Correct Option: 5 Best Solution (2)