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

A. 3500

B. 4000

C. 4050

D. 5000

Show Answer

Answer-B
Solution-

Solution(By Apex Team)

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

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