Răspuns :
A)4200x50%=4200x50/100=210000/100=2100-culegeri
2100x40/100=84000/100=840-carti de literatura
4200-2100-840=1260-limbi straine
B)2100:1260=1.66
2100x40/100=84000/100=840-carti de literatura
4200-2100-840=1260-limbi straine
B)2100:1260=1.66
culegeri=[tex] \frac{50}{100} *4200=0,5 *4200=2100[/tex]
carti de literatura =[tex] \frac{40}{100} *4200=0,4*4200=1680[/tex]
b) [tex] \frac{10}{100} *4200=420 carti-limbi -straine[/tex]
dar nu stiu cat ka suta
carti de literatura =[tex] \frac{40}{100} *4200=0,4*4200=1680[/tex]
b) [tex] \frac{10}{100} *4200=420 carti-limbi -straine[/tex]
dar nu stiu cat ka suta