翻译下列问题：

Question

1.There are dark,white,yellow socks.Each color has 10 socks.Take out the the socks randomly without seeing them to have at least two pairs of socks in different color.How many socks you have to take out at least?
2.There are 10 questions in a math exam.One will get 10 points for answering one question correctly and lose 5 points for giving the wrong answer.Tom got 70 points in all.How many question did he answer correctly?
3.There are two people,A and B,running around the circular track toward opposite directions at a uniform speed.The starting points lie at both ends of the circle's diamter line.These people start at the same,and meet after A runs 60m.B meets A for the second time when B has only 50 meters to finish one circle.Now,please work out the length of the track.
4.The workshops A,B,C,Dand E can use three cars for cycle transport.The number of stevedores required in each workdhop is marked in the picture.In order to save manpower,some stevedores should go with the car to ensure the needs of each workshop?
会一个也行啊 第三题diametr改为diameter

Answer 1

1、有黑色、白色和黄色的袜子。每种颜色各10只，在没有目视的情况下把这些袜子随机组合配对，其中至少要有两双袜子的颜色是不相同的，请问你至少要用到几只袜子？

2、总共有10道数学题，每道题答对得10分，打错扣5分。汤姆总共得到70分，他答对了几道题？

3、有A、B两个人沿着环形跑道用相同的速度向相反方向跑步，起点各自在环形跑道直径的两端。他们同时出发，A跑出60m后他们第一次相遇，B离终点还剩50m跑完第一圈的时候他们第二次相遇，现在，请你算出跑到的长度。

4、五家工厂A、B、C、D、E共同使用三辆车运货。每个工厂的搬运工数量如图所示。为了节省人力，每个工厂需要有几名搬运工跟随货车运货来完成工厂的运货需求？