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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. The monthly income of P is Tk. -
- A. 4000
- B. 4000
- C. 4000
- D. 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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