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Va rog urgent !!!!/ problema 6 dau coroana

Va Rog Urgent Problema 6 Dau Coroana class=

Răspuns :

Notezi Irina=a; Tudor=b; Andrei=c
a+b=559 => a=559-b
b+c=600 => c=600-b
a+c=531
+
_________
=> 2(a+b+c) =1690 => a+b+c=845 <=> 559-b+b+600-b =845 <=> 1159-b=845 <=> b=314 => a=559-314=245; c=600-314=286.