Subject
Quantitative Aptitude
Topic
Average
The average monthly income of P and Q is Tk. The average monthly income of Q and R is Tk. 6250 and the average monthly income of P and R is Tk. The monthly income of P is:
The average monthly income of P and Q is Tk. The average monthly income of Q and R is Tk. 6250 and the average monthly income of P and R is Tk. The monthly income of P is:
ক)
3500খ)
4000গ)
4050ঘ)
5000Explanation
Let P, Q and R represent their respective monthly incomes. Then, we have: P + Q = (5050 x 2) = 10100 .... (i) Q + R = (6250 x 2) = 12500 .... (ii) P + R = (5200 x 2) = 10400 .... (iii) Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 33000 or, P + Q + R = 16500 .... (iv) Subtracting (ii) from (iv), we get P = 4000. P's monthly income = Tk. 4000.Related questions
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