Notes from the underground
barang dot sg
Updated 2 December 2023
41. The watermelon

How much water must you remove from a 100 pound watermelon that is 99% water if you require the watermelon to be 98% water?

Note. A similar question is this. There are 100 people in a room, 99% of whom are women. A number of women leave the room and the proportion above drops to 98%. How many women left the room?