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  1. The average of 1, 3, 5, 7, 9, 11, -------- to 25 terms is
    1. 125
    2. 25
    3. 625
    4. 50
Correct Option: B

Sum of first n odd natural numbers = n²

∴ Their average =
n²
 = n
n

∴ Required average = 25 , because n = 25


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