Math Problem Statement

A man spends 40% of his income. For food expenses, he uses 1/3 of the remaining amount plus an increase of 3 + 1/3. His income increased by ₹16. What was the original income?

Solution

The image shows a mathematical word problem written in Hindi. Here's the transcription of the problem:

Problem: "एक आदमी अपनी आय का 40% खर्च करता है। जीवित रहने के लिए भोजन में खर्च हुए तिहाई के साथ उसी बची हुई राशि में 3+1/3 का वृद्धि होती है। उसके उसी आय में 16 रू. की वृद्धि होती है। वह राशि कितनी थी?"

Translation: "A man spends 40% of his income. For food expenses, 1/3 of the remaining amount plus an increase of 3+133 + \frac{1}{3}. There is an increase of ₹16 in his income. What was the original amount?"

Breakdown of the Problem:

  1. The man spends 40% of his income.
  2. He uses 1/3 of the remaining amount on food.
  3. There is an increase of 3+133 + \frac{1}{3} in the remaining amount.
  4. The increase results in ₹16 more in his income.

Let me solve this for you step by step.

Let the original income be xx.

  1. Expenses:

    • The man spends 40%, so the remaining income is 60%60\% of xx, which is 0.6x0.6x.
  2. Food Expenses:

    • He spends 13\frac{1}{3} of 0.6x0.6x on food. This means the food expense is 13×0.6x=0.2x\frac{1}{3} \times 0.6x = 0.2x.
  3. Remaining Income After Food:

    • The remaining amount after food expenses is 0.6x0.2x=0.4x0.6x - 0.2x = 0.4x.
  4. Increase:

    • The remaining amount increases by 3+133 + \frac{1}{3}, i.e., 313=1033 \frac{1}{3} = \frac{10}{3}.
    • The total increase is ₹16, so the relation becomes: 103×0.4x=16\frac{10}{3} \times 0.4x = 16
  5. Solve for xx: Now we can solve for xx from the equation.

Let me calculate this next.The original income of the man was ₹12.

Would you like a more detailed explanation or have any other questions?

Here are some related questions you might find useful:

  1. What would happen if his expenses were 50% instead of 40%?
  2. How would the equation change if the increase in income was ₹20 instead of ₹16?
  3. Can you determine the man's total expenses if he increases his food spending by ₹5?
  4. What would the total food expense be if his income doubled?
  5. If the increase 3+133 + \frac{1}{3} was replaced by a fixed ₹10, what would the new income be?

Tip: When solving word problems, it's often helpful to translate each part into mathematical equations to simplify the solution process!

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Math Problem Analysis

Mathematical Concepts

Percentages
Algebra

Formulas

Remaining income = 0.6x
Food expenses = 1/3 of 0.6x
Total increase = 3 + 1/3

Theorems

Linear Equations

Suitable Grade Level

Grades 8-10