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Read the given information and answer the question asked by choosing the most appropriate option. In a group, 54 persons likes Physics, 47 persons likes Mathematics and 71 persons likes Chemistry. Among them, 12 persons likes only Physics and Chemistry, 23 persons likes only Mathematics and Chemistry, 11 persons likes only Physics and Mathematics and 10 persons likes all the three subjects. How many persons likes one subject only?

Read the given information and answer the question asked by choosing the most appropriate option. In a group, 54 persons likes Physics, 47 persons likes Mathematics and 71 persons likes Chemistry. Among them, 12 persons likes only Physics and Chemistry, 23 persons likes only Mathematics and Chemistry, 11 persons likes only Physics and Mathematics and 10 persons likes all the three subjects. How many persons likes one subject only? Correct Answer 50

Number of persons who likes Physics = 54

Number of persons who likes Chemistry = 71

Number of persons who likes Mathematics = 47

Number of persons who likes only Physics and Chemistry = 12

Number of persons who likes only Physics and Mathematics = 11

Number of persons who likes only Chemistry and Mathematics = 23

Number of persons who likes all the three subjects = 10

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Number of persons who likes one subject only = 21 + 26 + 3 = 50

Hence, 50 is the correct answer.

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