A farmer has 52 cows. Each cow gives 5 liters of milk a day. How many liters of milk does the farmer get in a week? Think carefully first, then make a decision:
The amount of milk one cow gives in a week: 5 liters / day * 7 days / week = 35 liters / week. The amount of milk 52 cows give in a week: 52 cows * 35 liters / week / cow = 1820 liters / week. So, the answer is 1820.