Dan,Radu si Cornel au tras cu arcul la tinta.Dansi Radu au impreuna 52 de puncte,Radu si Cornel au impreuna 60 de puncte,iar Dan si Cornel au impreuna 56 de puncte. Cat puncte a obtinut fiecare baiat?

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Răspunsuri

2014-01-22T21:37:28+02:00
D+C+R

D+R=52
R+C=60=>R=60-C =>R=60-24=36 puncte
D+C=56=>D=56-C =>D=56-32=24 puncte

56-C+60-C=52

56+60-52=C+C
64=2C
C=32 puncte. In continuare inlocuim sus.



8 3 8
2014-01-22T21:45:25+02:00
D+R=52
R+C=60 
D+C=56

R+D+2C=60+56=116
R+D=52
52+2C=116
2C=116-52=64
C=64:2=32

R+C=60
R+32=60
R=60-32=28

D+R=52
D+28=52
D=52-28=24

Proba:
R+C=60
28+32=60
D+R+C=24+28+32=84 :)
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