In a class, one-third of students had gone to watch drama. Twice the square root of the students had gone to watch football match, and remaining 36 students had gone to watch museum. Find total number of students in the class.

There are a total of 9 chocolates - 3 each in the flavors of cherry, coffee and banana. There are also 4 children. If each child is allowed to choose their own favorite flavor, what is the probability that all of them will get flavors of their choice?