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受欢迎的 Word Problems >

The sum of 3 consecutive odd integers is 69.

解答

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 69.

解答

The numbers : 21, 23, 25

求解步骤

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

解

x + x + 2 + x + 4 = 69 : x = 21

x + 2 = 21 + 2 = 23

x + 4 = 21 + 4 = 25

The numbers : 21, 23, 25

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