Question

find the sum of odd number between 0 to 50​

Answer 1

Answer:

Therefore, sum of odd no between 0and 50 is 625

Answer 2

Step-by-step explanation:

first odd number = 1

nth odd number = 2n+1

last odd number 49

therfore,

an=a+(n-1)d

49=1+(n-1)2

48/2=n-1

24+1=n

n=25 terms

therfore

sn=n/2(a+l)

Sn=25/2*50

Sn=625