This question i take from OG 13 edition (number 172th on the book). I am looking for an alternative approach to the problem, other than the answer given in the book.
Question:
For any positive integer n, the sum of the first
"n" positive integers equals n(n+1)/2, what is the sum
of all the even integers between 99 and 301 ?
Answer: 20,200
Question:
For any positive integer n, the sum of the first
"n" positive integers equals n(n+1)/2, what is the sum
of all the even integers between 99 and 301 ?
Answer: 20,200
