Determine 3800

Dano and Juraj have a total of 120 euros. Juraj has 40% less money than Daniel. Determine how much money Daniel and Juraj have.

Correct answer:

D =  75
J =  45

Step-by-step explanation:


D+J=120
J = D - 0.40·D

D+J = 120
0.6D-J = 0

Row 2 - 0.6 · Row 1 → Row 2
D+J = 120
-1.6J = -72


J = -72/-1.6 = 45
D = 120-J = 120-45 = 75

D = 75
J = 45

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