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Popular Word Problems >

The sum of two numbers is 100 . One number is 4 times as large as the other. What are the numbers?

Solution

T h e s u m o f tw o n u mb ers i s 100 . O n e n u mb er i s 4 t im es a s l a r g e a s t h e o t h er . Wha t a re t h e n u mb ers ?

Solution

The numbers : 80, 20

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 100

x = 4 y

x + y = 100, x = 4 y : x = 80, y = 20

The numbers : 80, 20

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