perbandingan tlg jawab bsk dikumpulkan

3/10×70 000 = 21000
7/10×70000 = 49 000
5/12× 84 000= 35 000
                      ------------- =
                Rp  105 000  ( c )

70 000 = 3 unit + 7 unit
84 000 = 5 unit + 7 unit
10 unit = 70 000
12 unit = 84 000
1 unit = 70 000 ÷ 10 / 84 000 ÷12
= 7 000
Jumlah unit = 3 + 5 +7 = 15
15 unit = 15 × 7000
= 105 000
Jawabannya C.