Please please please.... dibantu yaaa nomor 22 ajaaaa......Pakai caraaaa!!!!!

Ri : F : Ra Ri - F = Rp 1.050.000
=12 : 5 : 2 F - Ra = ?


Jawaban :
perbandingan Ri dikurangi perbandingan F
12 - 5 = 7
1.050.000 ÷ 7 = 150.000
F = 5 × 150.000
= 750.000
F - Ra
= 3
750.000 ÷ 3
= 250.000
Ra = 2 × 250.000
= 500.000
750.000 - 500.000
= 250.000