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Popular Word Problems >

The sum of two numbers is four times their difference. The smaller of these numbers is 15 What is the greater number?

Solution

T h e s u m o f tw o n u mb ers i s f o u r t im es t h e i r d i ff ere n ce . T h e s ma ll er o f t h ese n u mb ers i s 15 Wha t i s t h e g re a t er n u mb er ?

Solution

The number : 9

Solution steps

Represent the numbers with

x and y

:

number 1 : x

number 2 : y

A.T.Q.:

x + y = 4 (x - y)

x = 15

x + y = 4 (x - y), x = 15 : x = 15, y = 9

The number : 9

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