If you had an infinite supply of water and a 5 quart and 3 quart pail, how would you measure exactly 4 quarts?
If you had an infinite supply of water and a 5 quart and 3 quart pail, how would you measure exactly 4 quarts?
如果你有一个5夸脱的水桶和一个3夸脱的水桶，如何准确量出4夸脱的水？