Question

O casiera a sortat banii in doua teancuri, in total 140 de bancnote. In primul teanc a pus bancnote de 50 de lei, iar in al doilea teanc a pus bancnote de 200 de lei. Cate bancnote se afla in fiecare teanc, daca sumele sunt egale

Answer 1

x+y=140
200*y=50*x
4*y=x=>
4*y+y=140
5*y=140
y=140/5=28
x=28*4=112