The cost price per kg of two types of rice A and B are in the ratio 3:2. If the ratio of quantity purchased of rice A and B is 4:5, then what is the ratio of the total costs of these two types of rice A and B that we have bought?
Type | Quantity | Price/kg | Total price |
A | 4a | 3p | 12ap |
B | 5a | 2p | 10ap |