The average salary per head of all workers of an institution is $Rs. \,60\,.$ The average salary per head of $12$ officers is $Rs. \,400 .$ The average salary per head of the rest is $Rs.$ $56 .$ Then, the total number of workers in the institution is?

  • A

    $1030$

  • B

    $1032$

  • C

    $1062$

  • D

    $1060$

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