Stamps 79154

Milan has four times more marks than Anka. Anka has twice as few grades as Juro. They have a total of 91 stamps. How many stamps does each person have?

Correct answer:

A =  13
M =  52
J =  26

Step-by-step explanation:

M=4 A A=J/2 A+M+J=91  4AM=0 2AJ=0 A+J+M=91  Row242 Row1Row2 4AM=0 J+0.5M=0 A+J+M=91  Row341 Row1Row3 4AM=0 J+0.5M=0 J+1.25M=91  Row3+Row2Row3 4AM=0 J+0.5M=0 1.75M=91  M=1.7591=52 J=100.5M=100.5 52=26 A=40+M=40+52=13  A=13 J=26 M=52

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