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) Rs. 3500 (b) Rs. 4000 (c) Rs. 4050 (d) Rs. 5000
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) Rs. 3500 (b) Rs. 4000 (c) Rs. 4050 (d) Rs. 5000
Let represent their respective monthly incomes.
Then, we have
Adding we get:
Subtracting from we get
P’s monthly income = Rs. 4000.