Answers, Brain teaser
【明報專訊】1. Fill the 400ml cup. Transfer the content to the 700ml container. The 700ml container still has a capacity for 300ml.
2. Fill the 400ml cup again and use it to fill the rest of the 700ml cup. There is 100ml whipped cream in the small cup.
3. Pour the whipped cream in the 700ml cup back to the whipped cream carton. Transfer the 100ml whipped cream from the small cup into the big cup.
4. Fill the 400ml cup and combine it with the 100ml in the 700ml container. Now Pat has her whipped cream for the tiramisu!
[Smarties' Power English 第228期]