Question

英奥题，先翻译，后解答，急~~~~~

1、One project,A needs 12 hours to finish it alone,while B needs 15 hours to finish it alone.After A and B turn down like this.So how many hours does the project need?
2、At the end of 2005 Walter was half as old as his grandmother.The sum of the which they were born is 3860.How old will Walter be at the end of 2006?
3、The number of the pupils in Grade One is no less than 100.If they stand in a line of 2,or a line of 5,there must be a pupil left every time.But,If they in a line of 7,there will be a rectangle.Then,the number of the pupils is____
4、A math student interviewed 60 fifth grade.45 said they like peanut butter sandwiches,37 liked jam sandwiches and 32 liked both their sandwiches.How many students liked neither?
5、In a certain class consisting of 54 students,some boys and some girls.Exactly 4/7 of boys and 3/5 of girls walk to school.What is the greatest possible number of students in this class,who walk to school?
6、We give an 7.5 discount to a product,then we must increase __% to make the price the original one.
7、Paula goes for a 30 minute run.for the first 20 minutes she runs at an average speed of 9 miles per hour.In the next 10 minutes she runs a distance of 1 mile.Work out the average speed for her 30 minute run.(Give your answer in miles per hour)
8、The admission price per child at an amusement pake is 5/9 of the admission price per adult.If the admission price for 6 adults and 3 children is $276,then the admission price per adult is___.
9、There is a rectangle whose length is 24cm,and the height of this rectangle is 18cm.If we cut the biggest square from the rectangle,then the area of the left part is ___square centimeter.
10、Saul plays a video game in which he scores 4 for a hit and lost 6 for a miss.After 20 rounds his score is 30.The number of times he has missed is ___.

Answer 1

你要翻译吗？
译文如下：
1，A项目单独完成需要12小时，B项目单独完成需要15个小时。这样A项目和B项目都完成后需要多少个小时？
27个？
2，在2005年末怀特的岁数刚好是他奶奶的一般，他和奶奶的出生年份的和是3860，那么怀特在2006年末是多少岁呢？
3，一年级共有学生少于100人，如果站成2列或者5列那么每次都会有一个学生余出。但是如果站成7列，那么会是一个矩形，请问学生一共有多少？,

追问

其他的呢？

追答

4，一个数学学生向60个5年级做了调查，有45个人说喜欢吃花生酱三明治，37人喜欢果酱三明治，32个人两种三明治都喜欢，问：有多少个人两种三明治都不喜欢吃呢？
5，有一个班是由54个学生组成，其中有7分之4的男生和5分之3的女生走路去上学，那么在这个班里走路上学的学生（不分男女）最有可能是多少个？
6，有一个产品我们7.5折优惠，那么需要再优惠价的基础上增加百分之多少能得出这件产品的原价呢？
7，宝拉（人名）喜欢30分钟跑步锻炼，在前二十分钟她跑步的速度是9英里每小时，在剩下的十分钟里她跑了1英里的距离，请计算出这三十分钟宝拉的平均速度是多少（请回答 英里/小时）？
8，有一个游乐园的儿童门票是成人门票的九分之五，如果6个成人和3个儿童的门票一共需要276美元，那么这个游乐园的成人票价是多少呢？
9，有一个矩形，长是24cm，宽是18cm，如果用这个矩形切出一个最大的正方形，那么余下部分的面积是多少平方厘米？
10，索尔（人名）玩视频游戏，他集中一次能得到4分，失手一次会丢掉6分，20局下来他一共得到30分，那么他一共失手几次呢？

累死我了，手疼！！呵呵

Answer 2

跪求题2！！