In a famous fast food shop, three types of burgers: Regular burger, Cheese burger, and Health burger are sold everyday. In a particular week 850 regular burgers were sold. The number of health burgers sold in that particular week was half the number of regular burgers and
50 more cheese burgers were sold than health burgers.

How many health burgers were sold in that week? _

How many cheese burgers were sold in that week? _

How many burgers of all the three types were sold in that week? _