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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