Multiple Choice Questions

What is the average of first 25 odd natural numbers ........

Quantitative Aptitude (IB) Average

What is the average of first 25 odd natural numbers ?

The first 25 odd numbers
1, 3, 5, . . . . , 47, 49

sum of first 25 odd numbers

1 + 3 + 5 + . . . . + 47 + 49 = 625

Divide the sum by 25
625/25 = 25

Hence, option 1 is the correct answer.

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