Răspunsuri

2014-05-03T23:03:54+03:00
X+10/100Xx=1210
Se amplifica cu 100: x si 1210
100x+10x=121000
110x=121000
x=121000:110
x=1100
2014-05-03T23:06:41+03:00
10 la suta din 1210 inseamna 121
1210-121=1089 suma depusa initial