perbandingan bola merah dan bola biru adalah 2:9 sedangkan perbandingan bola biru dan bola kuning adalah 8:7.Selisih bola merah dan biru adalah 235 bola. Tentukan jumlah bola merah ditambah bola kuning

<p>Jawaban yang tepat adalah 332 &nbsp;bola</p><p>&nbsp;</p><p>Pembahasan :</p><p>Bola Merah : Bola Biru = 2 : 9</p><p>Bola Biru : Bola Kuning = 8 : 7</p><p>Bola Merah : Bola Biru : Bola Kuning = 16 : 72 : 63</p><p>&nbsp;</p><p>Tambahkan variabel dibelakang perbandingannya, misalkan a</p><p>Bola Merah : Bola Biru : Bola Kuning = 16a : 72a : 63a</p><p>&nbsp;</p><p>Selisih bola merah dan biru adalah 235 bola</p><p>72a - 16a = 235</p><p>56a = 235</p><p>a = 235/56</p><p>a = 4,2</p><p>&nbsp;</p><p>Jumlah bola merah ditambah bola kuning = 16a + 63a</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 16(4,2) + 63(4,2)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 67,2 + 264,6</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 331,8</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; = 332 &nbsp;bola</p>