Question

15 va rog dau coroana ma si ABONEZ ​

Answer 1

Răspuns:

Răspuns final............

Answer 2

Ionut + Cristi = 150 timbre

Cristi + George = 127 timbre

Ionut + George = 143 de timbre.

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Ionut + Cristi + Cristi + George + Ionut+ George = 150+127+143 timbre.

Observam ca avem de 2 ori acelasi nume.

Asa ca:

2 I + 2C + 2G = 420 :2

2 I +2C +2G = 210

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150 + G (George)= 210

G = 210-150

G = 60 timbre

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Acum ca am aflat cate timbre are george putem afla si cate timbre are Cristi.

C + 60= 127 timbre

C = 127-60

C = 67 timbre.

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Putem sa calculam si cate timbre are Ionut!

I + 60= 143 timbre

I = 143-60

I= 83 timbre

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Raspuns final.

Ionut are 83 de timbre.