Răspunsuri

2014-08-11T11:59:58+03:00
X-suma initiala

1/4 din x=  1/4 *x =x/4 -prima data

x-x/4=  (4x-x)/4=  3x/4 -restul

1/6 din 3x/4=  1/6 *3x/4= x/8 -a doua oara

3x/4-x/8 =(6x-x)/8=  5x/8 -noul rest

1/3 din 5x/8 +120= 1/3 *5x/8 +120=  5x/24 +120 -a treia oara

5x/8 -(5x/24 +120)=  (15x-5x+960)/24= (10x +960)/24 -noul nou rest

(10x+960)/24= 600

10x+960=24*600

10x=14400-960

10x=13440
x=1344
5 4 5