45300*51/100=b <=> b= 23103
51/100 = nr femeilor
7.
0.25 % * 30 000 = 25/100 * 30 000 = 7500
8.
2500*15/100 = 25*15 = 375
375 +2500 = 2875 suma la sfarsitul anului
11.
240 .......... 100 %
x ................25 %
x= (240*25)/100 = 60 lei prima zi
60 ..... 100%
x...........20%
x= (20*60)/100 <=> x= 1200/100 <=>X=12 a doua zi
12.....100%
x.....10%
x= (10*12)/100 = 120/100 <=> x= 1.2
240 - 60 -12 -1.2 = 166.8 ii raman
14.
dupa ieftinire : 200 - 2/100 * 200 = 196
dupa scumpire : 200 + 10/100 * 200 = 220
pretul final : 220 lei
Sper sa fie corect!
