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     EduGorilla 
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    Every student of a science class receives exactly one of the grades A, B, C or D. If 1/5 of the students receive A, 1/4 receive B, 1/2 receive C and 5 students receive D, how many students are there in the class?

    Options :-

    1. 50
    2. 60
    3. 90
    4. 100
    5. 200
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