A farmer has three trucks to carry water to his farm. Each truck uses three tanks with a capacity of 150 liters of water. How many liters of water in total can the farmer carry in his trucks? Think carefully first, then make a decision:
1 truck uses 3 tanks of 150 liters, so a truck can carry 3 tanks per truck * 150 liters = 450 liters per truck. The total amount of water the 3 trucks carry is 3 trucks * 450 liters per truck = 1350 liters. So, the answer is 1350.