Question

If we write the numbers from 50 to 151 what is the difference between sum of all odd and even numbers

Answer 1

Answer:

here a=51

and n=51

d=1

An=151

so

Sn=(a+an)n/2

=(51+151)51/2

=101x51

=5151 ans.

difference between odd and even number is

5151-odd number

5150-even number

difference is 1