The average monthly income of P and Q is Rs. 2050. The average monthly income of Q and R is Rs. 5250 and the average monthly income of P and R is Rs. 6200. The monthly income of P is:  Pick one
A) 3050	B) 3000	C) 4000	D) 4050	E) 3100
Explanation:   Let P, Q and R represent their respective monthly incomes. Then, we have:   P + Q = (2050 x 2) = 4100 .... (i)   Q + R = (5250 x 2) = 10500 .... (ii)   P + R = (6200 x 2) = 12400 .... (iii)   Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 27000 or P + Q + R = 13500 .... (iv)   Subtracting (ii) from (iv), we get P = 3000.   P's monthly income = Rs. 3000.   Answer: 3000
<result>B</result>
The average monthly income of P and Q is Rs. 2050. The average monthly income of Q and R is Rs. 5250 and the average monthly income of P and R is Rs. 6200. The monthly income of P is: