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Question 5The average monthly income of Pand Q is Rs. 5050. The averagemonthly income of Q and R is Rs.6250 and the average monthlyincome of P and R is Rs. 5200. Themonthly income of P is:a) 3500b) 4000c) 4050d) 5000 |
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Answer» 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 = Rs. 4000. 4000 4000 is right answer 4000 is the answer. i think that 4000 will be anser what is the sales formula |
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