【题目】Li Ming is an active boy student and he always tries his best to make his life colorful though he is in Grade 9. The table below shows that he spends ________ minutes on after-class activities every week.
Li Ming’s After-class Activities | |||
Weekdays | Weekends | ||
Reading books | Riding a bike | Running | Ball games |
50 minutes | 100 minutes | 20 minutes/day | 30 minutes/day |
A. 250B. 850C. 600