The average monthly income of P and Q is ? 5050. The average monthly income of Q and R is ? 6250 and the average monthly income of P and R is ? 5200, the monthly income of P is
a)
? 3500
b)
? 4000
c)
? 4500
d)
None of these
The average monthly income of P and Q is ? 5050. The average monthly income of Q and R is ? 6250 and the average monthly income of P and R is ? 5200, the monthly income of P is
a)
? 3500
b)
? 4000
c)
? 4500
d)
None of these
Question ID - 53613 | SaraNextGen Top Answer
The average monthly income of P and Q is ? 5050. The average monthly income of Q and R is ? 6250 and the average monthly income of P and R is ? 5200, the monthly income of P is
a)
? 3500
b)
? 4000
c)
? 4500
d)
None of these
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The average monthly income of P and Q is ? 5050. The average monthly income of Q and R is ? 6250 and the average monthly income of P and R is ? 5200, the monthly income of P is |
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|||||||
|
a) |
? 3500 |
b) |
? 4000 |
c) |
? 4500 |
d) |
None of these |
|
1 Answer
127 votes
Answer Key / Explanation : (b) -
Let 
represents their respective monthly incomes, we have
|
|
…(i) |
|
|
…(ii) |
|
|
…(iii) |
Adding (i), (ii) and (iii), we have 2
⇒ 
⇒
(using (ii))
⇒
So, the monthly income of 
is ?. 4000.
127 votes
Answer Link
127