The sum of 5 consecutive odd numbers is 145.

해법

T h e s u m o f 5 co n sec u t i v e o dd n u mb ers i s 145.

The numbers : 25, 27, 29, 31, 33

솔루션 단계

Represent the numbers with

x

First number : x

Consecutive number 1 : x + 2

Consecutive number 2 : x + 4

Consecutive number 3 : x + 6

Consecutive number 4 : x + 8

A.T.Q.:

x + x + 2 + x + 4 + x + 6 + x + 8 = 145

x + x + 2 + x + 4 + x + 6 + x + 8 = 145

해결 :

x = 25

x + 2 = 25 + 2 = 27

x + 4 = 25 + 4 = 29

x + 6 = 25 + 6 = 31

x + 8 = 25 + 8 = 33

The numbers : 25, 27, 29, 31, 33