I have two glasses of 3 ounces and 5 ounces. Give me 4 ounces of liquid
Anonymous
5oz glass =A, 3oz glass = B. Fill up A, and pour into B. You'll have 2oz left in A. Drain B, pour that 2oz in B. Fill up A again, and pour to fill that remaining 1oz in B. You'll have 5oz-1oz =4oz in A.
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