In a school, 80 students like Maths, 90 students like sceince, 82 students like History, 21 like both Maths and science, 19 like both Science and History, 20 like both Maths and History and 8 liked all the three subjects. If each student like atleast one subject, then find (i) the number of students in the school (ii) the number of students who like only one subject.
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