Question

Dan are o suma de bani. In prima zi a cheltuit 2/6 din suma,a doua zi 1/6 din suma,a traia zi 1/3 din suma si constata ca i-au ramas 50 de lei. Afla ce suma ce suma de bani avea dan initial.


Dau coroana :)​

Answer 1

Răspuns:

x-suma de bani

prima zi: 2x/6

a doua zi 1x/6

a treia zi: 1x/3

2x/6+x/6+x/3+50=x

s-a adus la acelasi numitor:

2x/6+x/6+2x/6+300/6=6x/6

2x+x+2x+300=6x

5x+300=6x

300=6x-5x

x=300 lei suma initiala