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2014-04-23T23:19:43+03:00
X-suma initiala
25% din x=  25/100*x= 1/4*x=  x/4-in prima zi
30% din x=  30/100 *x=  3/10 *x=  3x/10- a doua zi
x/4+3x/10 +360=x
10x+12x+14400=40x
22x-40x=-14400
-18x=-14400
18x=14400
x=800
2 5 2
2014-04-23T23:19:48+03:00
100% - 25% - 30%=45%
45%=360
1%=360:45=8lei
suma initiala = 100%= 800 lei
1 5 1