The sum of 3 consecutive odd integers is-255. What is the greatest of these integers?

解

T h e s u m o f 3 co n sec u t i v e o dd in t e g ers i s - 255. Wha t i s t h e g re a t es t o f t h ese in t e g ers ?

The largest number : - 83

解答ステップ

Represent the numbers with

x

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

A.T.Q.:

x + x + 2 + x + 4 = - 255

解く

x + x + 2 + x + 4 = - 255 : x = - 87

x + 2 = - 87 + 2 = - 85

x + 4 = - 87 + 4 = - 83

Select the largest solution:

- 83

The largest number : - 83