Question

Un portofoliu al unui ofiter de credite contine 30% credite micro, 20% credite small si restul de 85 de credite agro. Cate credite micro contine portofoliul?

Answer 1

85/1 * 20/100 = 1700/100 = 17
85+17 = 102 credite small
102 + 85 = 187
187/1 * 30/100 = 56
187 + 56 = 243 credite micro 

Answer 2

notam X = nr total de credite
30% credite micro, 20% credite small, 85 credite agro

30% din X+20%din X=50%din X
=> 85 credite reprezinta 50% dinX
deci X=85·2=170 credite in total
(30/100)  · 170=51 credite micro
(20/100)· 170=34 credite small
verificare: 51+34+85=170 credite