Study the diagram given below and answer the questions based on it.
$$\triangle$$ represents Students who have choosen Art Course
$$\circ$$ represents Students who have choosen Science Course
$$\Box$$ represents Students who have choosen DanceCourse
Â
How many students have chosen Arts course and Science course but not the Dance course?
Clearly it is visible from the picture,
there are (23+12)=35 students present who do arts and science.
But 12 of them also do dance.
So,number of students who choose arts and science but not dance is
$$35-12=23.$$
A is correct choice.
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