Răspuns :
a+b+c+d = 12005
a+b = 6028
c = 4200 : 10 ( 420 )
6028 + c ( 420 ) + d = 12005
6448 + d = 12005
d = 12005 - 6448
d = 5557
a+b = 6028
c = 4200 : 10 ( 420 )
6028 + c ( 420 ) + d = 12005
6448 + d = 12005
d = 12005 - 6448
d = 5557