女孩子都喜欢“七色花”的传说，每次摘下一瓣，吹口气许个愿，然后愿望就实现啦。为了增加趣味性，新加坡的袋鼠数学竞赛里就有一道摘花瓣的题，边做游戏边做题。

英文原文如下：Kate has 4 flowers, one with 6 petals, one with 7 petals, one with 8 petals and one with 11 petals. Kate tears off one petal from three flowers. She does this several times, choosing any three flowers each time. She stops when she can no longer tear one petal from three flowers. What is the smallest number of petals which can remain?

中文翻译如下，凯特有 4 朵花，一朵有 6 瓣，一朵有 7 瓣，一朵有 8 瓣，一朵有 11 瓣。 凯特从三朵花上撕下一片花瓣。她每次随意选一朵花摘掉一瓣，重复了几次。当她再也无法从三朵花中撕下一片花瓣时，她就停手了。问剩下的花瓣最少是多少？

评论区对答案，➥ 关注「小留洋」，一起研究海外数学题。

我又沒罵人，我又沒罵人，怎麽做個夢給你齊天大聖孫悟空。壁掛爐？無語凝噎得要死要活的時候再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧再說吧

Good night Baby！you're so beautiful and interested in your life！there is so Adorable with you，You're must be better than yesterday，this is my heart forone's with you。

立法會錯意，芥川迷戀藍色鐲子，就是芥川賞識教育的門徒，食夢貘？不清不楚。

谷崎是谷崎，嶇不平衡不充分。故為潤一郎的詩，不愛聽，看不慣，只是八方來財。 https://t.cn/A6JQrNY5

If given another chance, I would still buy this car. But probably wait until it's cheaper.
Buy it early so you can enjoy it the day you get in.
Do not regret on the wise purchase you make.
You can't ask for the refund when buying the house or stocks. So why bother trying when it's a car deal?#特斯拉[超话]# https://t.cn/RMzaoSw