1+3+5+7+...999 using n/2

1+999=1000

Since there are only odd numbers, n=999/2

So n/2=999/4

Therefore the answer is

1000×999/4=249750

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up