Question

Four different movies are running in a town. Ten students go to watch these four movies.
The number of ways in which every movie is watched by atleast one student, is (Assume
each way differs only by number of students watching a movie)
(a) 11
(b) 36
(C) 52
(d) 84​

Answer 1

Answer:

e) 0

because at that. moment all over the city the elecricity failed to supply current in electrical appliances so noone was bothered to go and watch movie as tomorrow they were parents teacher meeting

Answer 2

Answer:

84

Step-by-step explanation:

Let Movies name are m1, m2, m3 and m4 are watched by 10 students.

therefore, m1 + m2 + m3 +m4 = 10 ........... Equation (1)

Now each movie is watched by at least one students, it is similar to the problem, finding no of positive integral solution of equation (1). where m1>0, m2>0, m3>0, m4>0.

So the answer is 9C3