Question

The sum of 5 consecutive numbers is 200. What is the smallest number?

Answer 1

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Answer 2

Answer:

You can figure out the sum of any series of consecutive whole numbers by using the following formula, in which x = the sum, a = the first number in the series (e.g., 51), and n = the last number in the series (e.g, 55): x = (n x ((n + 1) / 2)) - ((a - 1) x (a / 2)) x = (55 x (56 / 2)) - (50 x 25.5)