The average monthly income of P and Q is Rs. 5050. The average monthly income o

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The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is:

Options:

A . Rs. 3500

B . Rs. 4000

C . Rs. 4050

D . Rs. 5000

Answer: Option B

Let P, Q and R represent their respective monthly incomes. Then, we have:P + Q = (5050 * 2) = 10100 --- (i)Q + R = (6250 * 2) = 12500 --- (ii)P + R = (5200 * 2) = 10400 --- (iii)Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 33000 = P + Q + R = 16500 --- (iv)Subtracting (ii) from (iv), we get, P = 4000.P's monthly income = Rs. 4000.

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