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sum of three numbers is 113. the third number is 7 more than the first. the second number is 4 times the third number. what are the numbers

Solution

sum of three numbers is 113. the third number is 7 more than the first. the second number is 4 times the third number. what are the numbers

Solution

The numbers : 13, 80, 20

Solution steps

Represent the numbers with

x, y, z

:

number 1 : x

number 2 : y

number 3 : z

A.T.Q.:

x + y + z = 113

z = 7 + x

y = 4 z

x + y + z = 113, z = 7 + x, y = 4 z : x = 13, y = 80, z = 20

The numbers : 13, 80, 20

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