Odd numbers are 1,3,5,7,9,….
Now we will see the sum of elements:
Sum of first 2 odd numbers: 1+3= 4= 22
Sum of first 3 odd numbers: 1+3+5= 9= 32
Sum of first 4 odd numbers: 1+3+5+7=16= 42
Sum of first 5 odd numbers: 1+3+5+7+9 = 25 = 52
if you see above there is particular pattern is observed while adding first odd numbers.
the sum of the first 5 numbers is 52
the sum of the first 10 numbers is 102
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