Job Recruitment Website - Property management company - What about the property in Ming Kai community?

What about the property in Ming Kai community?

680x3-520 =1520m2

I wish you happiness.

Buy back 600 souvenirs and distribute them to class 12. There are 60 copies left How many souvenirs are distributed per class on average?

600-60=540 copies

540- 12 = 45 copies