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Question

Rohit's income is Rs. 32000. If his expenses is 30 percent of total income, then what will be the saving of Rohit ?

This question was previously asked in
SSC CGL 2020 (Tier-2) Statistics Previous Year Paper 3 (28-Jan-2022)
The correct answer is

Rs. 22400

Understanding Income, Expenses, and Savings

This problem asks us to calculate the savings of Rohit, given his total income and the percentage of his income that he spends. Savings is the amount of money left after expenses are deducted from income. The relationship can be expressed as:

Savings = Income - Expenses

We are given Rohit's total income and his expenses as a percentage of his income. To find his savings, we first need to calculate the exact amount of his expenses in Rupees.

Calculating Rohit's Expenses

Rohit's total income is Rs. 32000. His expenses are stated to be 30 percent of his total income. To find the amount of expenses, we calculate 30% of 32000.

The formula to calculate a percentage of a number is:

Percentage Amount = (\(\frac{\text{Percentage}}{100}\)) \(\times\) Total Amount

In this case:

Expenses = (\(\frac{30}{100}\)) \(\times\) 32000

Let's perform the calculation:

Expenses = 0.30 \(\times\) 32000

Expenses = 9600

So, Rohit's total expenses are Rs. 9600.

Determining Rohit's Savings

Now that we know Rohit's income and his expenses, we can calculate his savings using the formula:

Savings = Income - Expenses

We have:

  • Income = Rs. 32000
  • Expenses = Rs. 9600

Substitute these values into the formula:

Savings = 32000 - 9600

Savings = 22400

Therefore, Rohit's savings are Rs. 22400.

Summary of Rohit's Financials

Here is a quick summary:

  • Total Income: Rs. 32000
  • Expenses (30% of Income): Rs. 9600
  • Savings (Income - Expenses): Rs. 22400

Revision Table: Income and Savings

Item Amount (Rs.)
Total Income 32000
Expenses (30%) 9600
Savings 22400

Additional Information on Percentage Calculations

Calculating percentages is a fundamental skill in many areas, including personal finance. A percentage is a fraction of 100. For example, 30% means \(\frac{30}{100}\). To find a percentage of a quantity, you convert the percentage to a decimal or fraction and multiply by the quantity.

Examples:

  • 10% of 500 = \(\frac{10}{100} \times 500 = 0.10 \times 500 = 50\)
  • 25% of 80 = \(\frac{25}{100} \times 80 = 0.25 \times 80 = 20\)

Understanding how to calculate percentages of income for expenses and savings helps in managing personal budgets effectively.

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Similar Questions

  1. Chamanlal, Arshad and Jagit Singh contested an election. All the votes polled were valid. Arshad got 35% of the total votes. For every 35 votes Chamanlal got 14 votes. The winner got 4950 more votes than the person who received the least number of votes. Find the total number of votes polled.

  2. The sum of two numbers is 680. If the bigger number is decreased by 15% and the smaller number is increased by 15%, then the resultant numbers are equal. Find the smaller number.

  3. A number is decreased by 20% to get another number. The number so obtained is increased by 200% to get a third number. The difference of the third number and the original number is what percentage more or less than the difference of second and the third number?

  4. In the first year the population of a town decreased by 5% due to the Corona virus first wave. In the next year it decreased again by 5% due to the second wave and in the third year it increased by 5%. At the end of the third year the population was 9,47,625. What was the population at the beginning of the first year?

  5. Radha saves 25% of her income. If her expenditure increases by 20% and her income increases by 29%, then her savings increase by;

  6. In an examination, 92% of the students passed and 480 students failed. If so, how many students appeared in the examination?

  7. If the sum of 40% of a number and 30% of the same number is 70, then the number is:

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  10. In an examination, 45% of all the students who appeared are boys and the rest are girls. If 60% of the boys and 70% of the girls passed, then what is the percentage of students who failed?


Important Questions from Percentage

  1. In an examination, 25% of the candidates failed in Mathematics and 12% failed in English. If 10% of the candidates failed in both the subjects and 292 candidates passed in both the subjects, which one of the following is the number of total candidates appeared in the examination?

  2. What is the value of 9% of 5500 + 2.4% of 1100 - 40% of 1600?

  3. Population of a village is 7960 in which 4660 are female. If in that village 60% are literate in which 70% female are literate, then what is the number of literate male ?

  4. In an examination, Ram obtained 20 % more than Ashok but 10% less than Rajesh. If the marks obtained by Ashok is 1080. Then the Percentage marks obtained by Rajesh if the full marks is 2000 ;

  5. A student appeared in 6 papers. The maximum marks are the same for each paper. His marks in these papers are in the proportion of 5 : 6 : 7 : 8 : 9 : 10. Overall he scored 60%. In how many number of papers did he score less than 60% of the maximum marks?

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