There are two types of consumers for ice cream. The first type likes ice cream and the inverse demand is given by P = 5 - Q/2 . The second type is crazy about ice cream and the inverse demand is given...

There are two types of consumers for ice cream. The first type likes ice cream and the inverse demand is given by P = 5 - Q/2 . The second type is crazy about ice cream and the
inverse demand is given by P = 20 - Q/2. There are 10 people from each type. Find the market demand.