Question

toate cele 828 ciocolate sunt ambalate in cutii mici si in cutii mari.in fiecare cutie mica se asaza cate 12 cioc ,iar in fiecare cutie mare se asaza cate 18 cioc.se stie k au fost 24 cutii mici.calculati cate cutii mari au fost

Answer 1

a+b=24+a,a-cutii mari,b-cutii mici
18a+12b=828
18a+12x24=828
18a=828-288=540
a=30
b=24

Answer 2

x+y=24+x⇒y=24
18x+12y=828
18x+12*24=828
18x+288=828
18x=828-288
18x=540
x==30
30 cutii mari