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. 5500. The monthly income of P is? Choose the correct option:
A) A)Rs.4078	B) B)Rs.4000	C) C)Rs.4029	D) D)Rs.4300	E) E)Rs.4020
Let P, Q and R represent their respective monthly incomes. Then, we have:   P + Q = (5050 * 2)= 
<gadget id="calculator">(5050 * 2)</gadget>
<output>10_100</output>
10100 --- (i)   Q + R= (6250 * 2)= 
<gadget id="calculator">(6250 * 2)</gadget>
<output>12_500</output>
12500 --- (ii)   P + R= (5500 * 2)= 
<gadget id="calculator">(5500 * 2)</gadget>
<output>11_000</output>
11000 --- (iii)   Adding (i), (ii) and (iii), we get:   2(P + Q + R)= 33600 = P + Q + R = 16800 --- (iv)   Subtracting (ii) from (iv), we get, P = 4300.   P's monthly income = Rs.4300.   Answer: Rs.4300
<result>D</result>
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. 5500. The monthly income of P is?