The 38 movies in the video store fall into the following three categories: 10 actions, 20 dramas, and 18 comedies. Howev

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The 38 movies in the video store fall into the following three categories: 10 actions, 20 dramas, and 18 comedies. However, some movies are classified under more than one category: 5 are both action and drama, 3 are both action and comedy, and 4 are both drama and comedy. How many action-drama comedies are there?

A. 1
B. 2
C. 3
D. 4
E. 5

Answer: B

Source: Manhattan GMAT
Source: — Problem Solving |