In an examination, out of $20$ students in a class, in Mathematics $2$ students scored $100$ marks $, 3$ students scored $0,$ and average marks for rest of the students was $40 .$ What is the average mark of the whole class ? (in $marks$)

  • A

    $40$

  • B

    $35$

  • C

    $32$

  • D

    $45$

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