Question

de la un depozit se duce marfa la patru magazine.la primul se duce 20℅din cantitate ,la al doilea25℅din rest,iar la al treilea50℅din noul rest,iar la ultimul restul de 108 tone.aflati ce cantitate era in depozit si cat a primit fiecare magazi?

Answer 1

1) 20x/100 =x /5  ;          x-x/5 =5x/5 -x/5 =4x/5  rest
2) 25/100 *4x/5 =100x / 500 =x /5  ;         4x/5 -x/5 =3x/5  rest
3) 50/100 *3x/5 =150x/500 =3x/10
4) 108 tone

x/5+x/5+3x/10+108 =x   numitor 10
2x+2x+3x+1080 =10x
10x-2x-2x-3x =1080
3x =1080
x =360 tone

1)x/5 =360/5 =72 t
2)x/5 =360/5 =72 t
3)3x/10 =3 *360/10 =1080/10 =108 t
4) 108  t
v  ;   72+72+108+108 =360 t.