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1. The average monthly income of P and Q is Tk.5050. The average monthly income of Q and R is Tk.6250 and the average monthly income of P and R is Tk.5200. Calculate the monthly income of P.

  • A. Tk.4000
  • B. Tk.4000
  • C. Tk.4000
  • D. Tk.4000

Answer: Option A

Explanation:

P + Q = 10100

Q + R = 12500

P + R = 10400

Now,

P - Q = 10400 - 12500

P - Q = -2100

P + Q = 10100

So, 2P = 8000

Or, P = 4000.

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