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受欢迎的 Word Problems >

Find three consecutive odd integers whose sum is 39.

解答

F in d t h ree co n sec u t i v e o dd in t e g ers w h ose s u m i s 39.

解答

The numbers : 11, 13, 15

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 = 39

解

x + x + 2 + x + 4 = 39 : x = 11

x + 2 = 11 + 2 = 13

x + 4 = 11 + 4 = 15

The numbers : 11, 13, 15

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