China Naming Network - Ziwei knowledge - 138 How do students draw lots to buy a house
138 How do students draw lots to buy a house
The students who subscribe to Youth Science and Technology News are:138 * 5/6 =115.
138*2/3=92 students subscribed to Reading for Senior Pupils.
1 15+92- 138=69
At least 69 students have subscribed to these two reading materials.