`45%` of the student of a class participated in Physics Olympiad Math Olympiad. 4 students participated in both. Find how many students. (i) Are there

Monjur Alahi

`45%` of the student of a class participated in Physics Olympiad Math Olympiad. 4 students participated in both. Find how many students.
(i) Are there in the class ?
(ii) Participated only in maths Olympiad ?
(iii) Participated in at least one Olympiad ?


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Salim Ahmed Kawsar

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Correct Answer - (i) 40 , (ii) 18 , (iii) 36

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