The sum of 4 consecutive integers is 354. What is the second number in this sequence?

解

T h e s u m o f 4 co n sec u t i v e in t e g ers i s 354. Wha t i s t h e seco n d n u mb er in t hi s se q u e n ce ?

The number : 88

解答ステップ

Represent the numbers with

x

First number : x

Consecutive number 1 : x + 1

Consecutive number 2 : x + 2

Consecutive number 3 : x + 3

A.T.Q.:

x + x + 1 + x + 2 + x + 3 = 354

解く

x + x + 1 + x + 2 + x + 3 = 354 : x = 87

x + 1 = 87 + 1 = 88

x + 2 = 87 + 2 = 89

x + 3 = 87 + 3 = 90

The number : 88