Ina soccer league, if there were 10 teams and each team played each of the otherteams 16 times, how many games did each team play?
A144B140 C134 D125 E106
这题是什么意思?为什么每支球队可以与其他球队比赛16次,搞不懂……
第二道题
In a list of numbers, the first number is 3. the second is 4. and each subsequent number is the sum of all the proceeding number in the list. If the 20th number in the list is X. What is the 25th number in the list?
A7X B16X C32X D35X E161X
这一题是什么意思?麻烦讲解下