In San Diego Zoo, the lion consumes 25 kilograms of meat, and the tiger consumes 20 kilograms of meat per day. If they have 90 kilograms of meat, how many days will the meats last? Think carefully first, then make a decision:
The lion and tiger's daily consumption of meat is 25 + 20 = 45 kilograms. Therefore, their supply of meat will last for 90 / 45 = 2 days. So, the answer is 2.