Question

1/2 uang ayu+2/3 uang selvi=300.000. 2/5 uang ayu+1/2 uang selvi=230.000. berapa uang masing2 uang ayu dan uang selvi

Answer 1

1/2 A + 2/3 S = 300.000...kali  4
2/5A  + 1/2 S = 230.000   kali  5

2  A   + 8/3 S = 1.200.000
2  A   + 5/2S =  1.150.000 -
    8/3S - 5/2S = 50.000
16/6S - 15/6 = 50.000
1/6S = 50.000
S(selvi) = 300.000

2A + 5/2S = 1.150.000
2A + 750.000 = 1.150.000
2A = 400.000
A(ayu) = 200.000