1.

The average of squares of consecutive odd numbers from 1 to 13 is1. 452. 653. 424. 52

Answer» Correct Answer - Option 2 : 65

Formula used:

Average of n numbers = Sum of all numbers/n

Calculation:

Odd numbers from 1 to 13 are 1, 3, 5, 7, 9, 11, 13

Sum of squares of 1, 3, 5, 7, 9, 11, 13 is 1 + 9 + 25 + 49 + 81 + 121 + 169 = 455

∴ Average of these numbers = 455/7 = 65



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