In a class of 175 students the following data shows the number of students opting one or more su...

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In a class of 175 students the following data shows the number of students opting one or more subjects. Mathematics 100; Physics 70; Chemistry 40; Mathematics and Physics 30; Mathematics and Chemistry 28; Physics and Chemistry 23; Mathematics, Physics and Chemistry 18 . How many students have offered Mathematics alone?
(A) 35
(B) 48
(C) 60
(D) 22
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