x+y+z=90 euro /5 = 18 bacnote de 5 euro
1kg portocale..........................6.8 euro
2kg........................................x=6.8*2=13.6 euro cheltuiti
1kg mandarine..........................4.7 euro
3.5kg,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,x=16.45 euro cheltuiti
In total 13.6+16.45=30.05 euro cheltuiti pentru fructe..
Ramasi pentru lamaii : 90-30.05=59.95 euro