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Aflati cinci nr pare consecutive care au suma egala cu 500

Răspuns :

CosmoteRo
a+a+2+a+4+a+6+a+8=500
5a+20=500
5a=500-20
5a=480
a=96
b=98
c=100
d=102
e=104
x+x+2+x+4+x+6+x+8=500
5x+20=500
5x=480
x=96
x+2=98
x+4=100
x+6=102
x+8=104

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