### 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 B

### 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

A. 20
B. 21
C. 28
D. 32

A. 18
B. 20
C. 24
D. 30

A. 10 years
B. 10.5 years
C. 11 years
D. 12 years