Harga 4 batang bibit durian sama 7 batang bibit kelengkeng.harga 3 bibit kelengkeng sama dengan 8 bibit rambutan harga 1 batang bibit rambutan Rp,22.500,00.aya

4 durian = 7 kelengkeng
3 kelengkeng = 8 rambutan
1 rambutan = 22500

3 kelengkeng = 8 * 22500
                      = 180000
7 kelengkeng = 7/3 * 180000
                      = 1260000/3
                      = 420000
3 durian = 3/4 * 420000
              = 0.75 * 420000
              = Rp.315000