Question

find the sum of odd numbers between 0 to 25.......plz solve this with proper explaination​

Answer 1

odd numbers between 0 and 25 : 1,3,5,7.......25

Here first term is 0

last term is 25

there are 13 such terms

so n=13

Now, according to formula S13=n/2(a+l)

13/2(1+25)

13/2(26)

Now, here 13 is divided by 2 and multiple by 26

so, we cut 26 by 2 it will become 13

hence, 13*13=169.

so, the answer is 169.

Answer 2

The odd numbers between 0 to 25 it would be 625 and it’s easy if you add all odd numbers = 625 and the photo of the calculation