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Phổ biến >

The sum of three consecutive even integers is 120. Find the integers.

Lời Giải

The sum of three consecutive even integers is 120. Find the integers.

Lời Giải

The numbers : 38, 40, 42

Các bước giải pháp

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 = 120

Giải

x + x + 2 + x + 4 = 120 : x = 38

x + 2 = 38 + 2 = 40

x + 4 = 38 + 4 = 42

The numbers : 38, 40, 42

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