Răspunsuri

2014-05-18T17:34:22+03:00
Raspuns : 960 lei?
asa cred..cred ca e de logica...
2014-05-18T17:37:28+03:00
20x/100=simplificam=x/5
x+x/5=(5x+x)/5=6x/5
6x/5·20/100=se simplifica=6x/25
6x/5-6x/25=(30x-6x)/25=24x/25
24x/25=960
x=960·25/24
x=1000 lei pretul initial
verificare
1000·20/100=200
1000+200=1200
1200·20/100=240
1200-240=960