Question

impartiti nr 288 in parti direct propotionale cu 7,11,18

Answer 1

a+b+c=288

a/7=b/11=c/18

b=11a/7

c=18a/7, inlocuim b si c in prima ecuatie

a+11a/7+18a/7=288, numitor comun 7

7a+11a+18a=2016

36a=2016, a=2016/36=56

b=11a/7=11*56/7=88

c=18a/7=18*56/7=144

Answer 2

a+b+c =288
a/7 +b/11+c/18 =a+b+c/7+11+18 =288/36 =8
a/7 =8  ;      a=7*8 =56
b/11 =8 ;      b =11*8 =88
c/18 =8        c =18*8 =144