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:

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Rs 3500

Rs 4000

Rs 4050

Rs 5000

answer is B.

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Detailed Solution

Given,
The average monthly income of P and Q= Rs.5050
The average monthly income of Q and R= Rs.6250
The average monthly income of P and R = Rs.5200
Thus,

P + Q = (5050 \times 2) = 10100 \dots . . (1)

Q + R = (6250 \times 2) = 12500 \dots . . (2)

P + R = (5200 \times 2) = 10400 \dots . (3)

Adding (1), (2) and (3) we get,

2 (P + Q + R) = 33000

(P + Q + R)

\frac{33000}{2}

(P + Q + R) = 16500 \dots \dots . . (4)

Now, subtract (2) from (4),

(P + Q + R) - (Q + R) = 16500 - 12500

P = 4000

Thus,

P^{'} s

monthly income =Rs.4000.
Correct option is 2.

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