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 Answer: Option BShow Answer
Solution(By Apex Team)
Let P, Q and R represent their respective monthly income
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
Subtracting (ii) from (iv),
we get, P = 4000
∴ P’s monthly income
= Rs. 4000
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