Răspunsuri

2014-05-21T14:34:59+03:00
Daca se scumpeste cu 20% si scade cu 10% rezulta ca se scumpeste cu 10%,asta inseamna 150x10 impartit la 100=iti da 15,apoi faci 150+15=165 pretu final
muiltumesc asa am facut la teza si nu stiam daca e bine iau 9 ;)
ok felicitari
2014-05-21T14:36:12+03:00
100%----------------------150
120%------------------------x

x =150 * 120 /100 = 180lei dupa scumpire
180lei------------------------100%
x-------------------------------90%

x = 180*90/100 =  162lei