One number is 5/2times as large as another.The sum of the number is 28.find the number.
Subject
Level
Junior High
Grade
7

Steps

Let the number be X

Let the other no. be Y

Given X eq (5/2)Y

Also X plus Y eq 28

Now Y eq (2/5)X

Hence X plus (2/5)X eq 28

(5X plus 2X)/5 eq 28

7X eq (5X28)

X eq (5X28)/7 eq (140/7)

X eq 20

 

 

 

 

Answer

20

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