A stall keeper in one of the food stalls has a large cylindrical vessel of base radius \(18 \ cm\) filled up to a height \(25 \ cm\) with grape juice. The juice is filled in small glasses, each glass consist of a \(7 \ cm\) long cylindrical portion attached to a hemisphere of radius \(3 \ cm\) and sold for \(₹\)19 each.
Based on the above information, solve the following questions:
1. The volume of juice in the vessel is :
2. The capacity of each small glass is :
3. Number of glasses of juice that are solid :
4. How much money does the stall keeper receive by selling the juice completely?