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인기 있는 Word Problems >

the sum of three consecutive numbers is 39. Find the value of the smallest number

해법

t h e s u m o f t h ree co n sec u t i v e n u mb ers i s 39. F in d t h e v a l u e o f t h e s ma ll es t n u mb er

해법

The smallest number : 12

솔루션 단계

Represent the numbers with

x

:

First number : x

Consecutive number 1 : x + 1

Consecutive number 2 : x + 2

A.T.Q.:

x + x + 1 + x + 2 = 39

x + x + 1 + x + 2 = 39

해결 :

x = 12

x + 1 = 12 + 1 = 13

x + 2 = 12 + 2 = 14

Select the smallest solution:

12

The smallest number : 12

인기 있는 예

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