The sum of 3 consecutive even numbers is 132 .What is the third number in this sequence?

解

T h e s u m o f 3 co n sec u t i v e e v e n n u mb ers i s 132 . Wha t i s t h e t hi r d n u mb er in t hi s se q u e n ce ?

The number : 46

解答ステップ

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 = 132

解く

x + x + 2 + x + 4 = 132 : x = 42

x + 2 = 42 + 2 = 44

x + 4 = 42 + 4 = 46

The number : 46