gwd-24-Q12 求助大家

gwd-24-Q12

During a 10-week summer vacation, was the average (arithmetic mean) number of books that Carolyn read per week greater than the average number of books that Jacob read per week?

(1)  Twice the average number of books that Carolyn read per week was greater than 5 less than twice the average number of books that Jacob read per week.

(2)  During the last 5 weeks of the vacation, Carolyn read a total of 3 books more than Jacob.        Answer:A

我选的是E。请问大家（Twice the average number of books that Carolyn read per week was greater than 5 less than twice the average number of books that Jacob read per week.）这句话是什么意思，怎样列出数学表达式。谢谢