Răspuns :
dupa prima zi mai are: 4/7 *200
dupa a doua zi mai are 70/100 * 4/7 *200 =80 lei
dupa a doua zi mai are 70/100 * 4/7 *200 =80 lei
[tex] \frac{3}{7} *200 + \frac{30}{100}* 200+ x=200 [/tex]
[tex]85,7+60+x=200[/tex]
[tex]145,7+x=200[/tex]
[tex]x=154,3 lei[/tex]
[tex]85,7+60+x=200[/tex]
[tex]145,7+x=200[/tex]
[tex]x=154,3 lei[/tex]