Question

Uang A = 2/3 × uang B,sedangkan uang B = 2/5 × uang C. Jumlah uang A, B, C semua adalah Rp250.000,00. Berapa rupiah uang mereka masing - masing?

Answer 1

A = 2/3B ; 4/15 C
B = 2/5C
C = 5/2B 
A+B+C=250000
4/15+2/5+1=25/15C=250000
C = 750000/5
   = 150000
A = 4/15 C
   = 4/15 . 150000
   = 40000
B = 2/5 C
   = 60000

Answer 2

A = 2/3b ; 4/15c
b = 2/5c
C = 5/2b
A+b+c=250.000