Question

find the sum of all even numbers between 1 to 250​

Answer 1

Answer:

31,371

Step-by-step explanation:

Sum of n digits = n(n+1)/2

Sum of first 250 digits = 250(251)/2

=125(251)

=31,371

Answer 2

Step-by-step explanation:

SAME PROCESS AS I TELL IN THE ANOTHER QUESTION...

ANOTHER TYPE OF PROCESS IS IN THE ATTACHMENT...