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인기 있는 Word Problems >

The sum of 3 consecutive odd numbers is 69 .

해법

T h e s u m o f 3 co n sec u t i v e o dd n u mb ers i s 69 .

해법

The numbers : 21, 23, 25

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 = 69

x + x + 2 + x + 4 = 69

해결 :

x = 21

x + 2 = 21 + 2 = 23

x + 4 = 21 + 4 = 25

The numbers : 21, 23, 25

인기 있는 예

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