想一想,算一算.

题目

想一想,算一算.
1.There are some girls and some dogs in a house.There are 22 heads and 72 feet.How mamy girls and dogs are there in the room?
2.If you want to boil one egg,it will cost you five minutes and thirty seconds(秒).In that way,how much time do you need to boil five eggs?
顺便给个答案,要英文的.

答案

1.一座房子里有几个女孩,几条狗.他们一共有22个头,72条腿.问房子里有多少女孩,多少条狗?（鸡兔同笼问题,自己算吧）
2.如果煮一个鸡蛋要5分30秒,煮5个鸡蛋要多少时间?（是不是脑筋急转弯?同时煮,仍然是5分30秒?）