I would say they would need to be replaced at separate times. If the tires diameter is greater then the other can travel double the distance without needing to be changed. Thats what i think
Step-by-step explanation: If the ratio of dogs is 4 and there are 24 dogs then you divided 24 by 4. 24/4 is 6. Then you multiply 3 (the ratio of cats) by 6 which equals 18.
