B: C = 5:7, jika C-B = 18 maka C =???
》Perbandingan
B : C = 5 : 7
Selisih = C – B = 18
Selisih Perbandingan = 7 – 5 = 2
Nilai C =
- = 7/2 × 18
- = 3,5 × 18
- = 63
Diketahui :
B : C : Jumlah : Selisih
5 : 7 : 12 : 2 = 18
Ditanya :
- C = ?
Penyelesaian :
B = 5/2 × 18
= 5×18/2
= 90/2
= 45
C = 7/2 × 18
= 7×18/2
= 126/2
= 63
Kesimpulan :
- Jadi C = 63