Question

Suppose you have 20 consecutive even numbers. What is the difference between the sum of the last 10 numbers and the sum of the first 10 numbers
plz answer

Answer 1

Answer: 200
Explanation: First start out with 20 even numbers:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40
As stated, you have to add the first ten together, and then add the last ten together
First ten:110 Last ten:310
Then subtract:
310-110=200