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Ratio between the monthly incomes of A and B is 9 : 8 and the ratio between their expenditures is 8 : 7. If they save ₹ 500 each, find A’s monthly income.
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- ₹ 3,500
- ₹ 4,000
- ₹ 4,500
- ₹ 5,000
Correct Option: C
If the ratio of the income of A and B be a : b and that of their expenses be c : d and each saves ₹ x, then,
| A’s income = | |
| ad − bc |
| = | |
| 9 × 7 − 8 × 8 |
= 9 × 500 = ₹ 4500
