Three consecutive even integers add up to 60. What is the value of the least integer?

해법

T h ree co n sec u t i v e e v e n in t e g ers a dd u p t o 60. Wha t i s t h e v a l u e o f t h e l e a s t in t e g er ?

The smallest number : 18

솔루션 단계

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 = 60

x + x + 2 + x + 4 = 60

해결 :

x = 18

x + 2 = 18 + 2 = 20

x + 4 = 18 + 4 = 22

Select the smallest solution:

18

The smallest number : 18