A n(n+1)(2n+1)/2
B {n(n+1)/2}2
C n(n+1)/2
D n2
Correct Answer: Option D
sum of 3 numbers =1+ 3 + 5= 9=33
sum of 4 numbers = 1+ 3 + 5 + 7 = 16 = 44
sum of 5 numbers = 55 = 25
sum of n numbers =n2
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