1 . The sun of daily income of P, Q and R is Tk.90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?

  • A. 40 Tk.
  • B. 30 Tk.
  • C. 20 Tk.
  • D. 10 Tk.
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