Question

without adding find the sum of 1+3+5+7+9+11+13+15+17+19+21+23+25

Answer 1

heyya HERE is the answer ✔✔✔✔✔✔✔


The answer is ......all are odd numbers and hence there are 13 numbers

so ANSWER is 169.


hope it will help u?


please mark it as a brainliest friend

Answer 2

Solution :-

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25

All the Numbers here are Consecutive Odd Numbers starting from 1...

When We have find the Sum of 'n' Consecutive Odd Numbers starting from 1 , Count the Number of Odd number and Square it.

i.e. Sum of 'n' Consecutive Odd Numbers starting from 1 = n²

Here, n = 13

So, Sum of '13' Consecutive Odd Numbers starting from 1 = 13² = 169

i.e. 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 = 169