Calculating Percentage Increase in Savings
This problem requires calculating the percentage change in savings after modifications to income and expenditure. We can solve this by comparing initial and final savings.
Initial Scenario Setup
- Assume an initial income of $100$.
- Expenditure is 70% of income: $0.70 \times 100 = 70$.
- Initial Savings = Income - Expenditure = $100 - 70 = 30$.
Updated Scenario Calculation
- Income increases by 10%: New Income = $100 + (0.10 \times 100) = 110$.
- Expenditure increases by 5%: New Expenditure = $70 + (0.05 \times 70) = 70 + 3.5 = 73.5$.
- New Savings = New Income - New Expenditure = $110 - 73.5 = 36.5$.
Determining Percentage Increase in Savings
- Increase in Savings = New Savings - Initial Savings = $36.5 - 30 = 6.5$.
- Percentage Increase = (Increase in Savings / Initial Savings) $\times 100$
- Percentage Increase = ($6.5 / 30$) $\times 100$
- Percentage Increase = $0.21666... \times 100 \approx 21.67\%$.
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Important Questions from Percentage
Radha saves 25% of her income. If her expenditure increases by 20% and her income increases by 29%, then her savings increase by;
The income of A is 45% more than the income of B and the income of C is 60% less than the sum of the incomes of A and B. The income of D is 20% more than that of C. If the difference between the incomes of B and D is Rs. 13200, then the income (in Rs.) of C is:
The price of cooking oil increased by 25%. Find by how much percentage a family must reduce its consumption in order to maintain the same budget.
The population of a city increased by 30% in the first year and decreased by 15% in the next year. If the present population is 11,050 then population 2 years ago was:
The income of A is 30% less than the income of B and the income of B is 137.5% more than that of C. If the income of A is Rs. 28500 less than that of B, then the income (in Rs.) of C is:
