Question

Ce suma de bani a avut alina daca dupa ce a cheltuit 2/3 din ei apoi 2/3 din noul rest i-au ramas 250 lei?

Answer 1

x-2/3 din suma
y-2/3 din suma-x
suma=x+y+250 lei
y+250 lei=suma-x =>y=2*250=500 =>suma -x =500
x=2/3*suma =>suma-2/3*suma=500 =>1/3*suma=500 =>suma=1500

Answer 2

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250 x 3 x 3 = 1500 lei