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The average expenditure of Manoj and Nawaz is ₹4500, which is 10% less than that of Sanjay and Irfan. Sanjay spends ₹500 more than Nawaz, and the average expenditure of Nawaz and Sanjay is ₹4250. Find the average expenditure of Manoj and Irfan (in ₹).
- 4250
- 5000
- 4750
- 5250
Correct answer: 5250
Solution
Average of Manoj and Nawaz is 4500, so their sum is 9000. This is 10% less than the average of Sanjay and Irfan, so their average is 5000 and sum is 10000. Also, Nawaz + Sanjay = 8500 and Sanjay = Nawaz + 500, giving Nawaz = 4000 and Sanjay = 4500. Then Manoj = 5000 and Irfan = 5500, so their average is 5250.
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