During the college fest, students were asked to bake cakes for the guests.
 
Each student was baking a part of the cake, and the teachers also helped by baking whole cakes.   
 
Each student baked \(\frac{2}{5}\) of the cake. 
 
There are 45 students in total.   
 
Teachers baked  7cakes in total. 
 
There were 20  stalls, each of which received all the cakes equally.
 
a. What are the total number of cakes baked by the students?
 
b. How many cakes are there in the fest overall?
 
c. If all the cakes were divided equally among 20 stalls, how much cakes does each stall gets? ii
 
d.If each cake is sold for \(Rs. 200\), how much does each stalls earns from it? Rs.
 
[NOTE: With Simplification]