The diagram given below shows the results of a survey on a sample of 500 students with reference to their interest in different types of movies viz. Action, Romantic, and Comedy. If all the students like at least one of three types of movies, then the number of students who like Action movies is how much more than those who like Comedy movies?

Action movies: 147 (only Action) + 42 (Action & Romantic) + 50 (Action & Comedy) + 100 (All three) = 339

Comedy movies: 68 (only Comedy) + 50 (Action & Comedy) + 38 (Comedy & Romantic) + 100 (All three) = 256

Difference: 339 (Action) - 256 (Comedy) = 83

So, 83 more students like Action movies than Comedy movies.

Thus, correct option is (b).