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A seller has 150 books of economics and accountancy. Avg price of these books is rs 40. Avg price of Economics is rs 43 and that of Accountancy is rs 35. Find the no. of books of economics with the seller.?
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A seller has 150 books of economics and accountancy. Avg price of thes...
**Given Information:**

- Total number of books = 150
- Average price of all books = Rs 40
- Average price of Economics books = Rs 43
- Average price of Accountancy books = Rs 35

**Let's assume:**

- Number of Economics books = x
- Number of Accountancy books = y

**Formulas:**

- Total price = Price of Economics books + Price of Accountancy books
- Price of Economics books = Number of Economics books * Average price of Economics books
- Price of Accountancy books = Number of Accountancy books * Average price of Accountancy books

**Calculation:**

1. Total number of books equation:

x + y = 150

2. Total price equation:

(x * 43) + (y * 35) = 150 * 40

3. Simplifying the equations:

43x + 35y = 6000

4. Solve the system of equations:

- Multiply the first equation by 35 to eliminate y:

35x + 35y = 5250

- Subtract the second equation from the first:

8x = 750

- Divide by 8:

x = 93.75

5. Since the number of books cannot be a fraction, we round down the value of x to the nearest whole number:

x = 93

6. Substitute the value of x back into one of the original equations:

93 + y = 150

7. Solve for y:

y = 150 - 93

y = 57

**Conclusion:**

The seller has 93 books of Economics and 57 books of Accountancy.
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A seller has 150 books of economics and accountancy. Avg price of thes...
75 books
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A seller has 150 books of economics and accountancy. Avg price of these books is rs 40. Avg price of Economics is rs 43 and that of Accountancy is rs 35. Find the no. of books of economics with the seller.?
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A seller has 150 books of economics and accountancy. Avg price of these books is rs 40. Avg price of Economics is rs 43 and that of Accountancy is rs 35. Find the no. of books of economics with the seller.? for Commerce 2025 is part of Commerce preparation. The Question and answers have been prepared according to the Commerce exam syllabus. Information about A seller has 150 books of economics and accountancy. Avg price of these books is rs 40. Avg price of Economics is rs 43 and that of Accountancy is rs 35. Find the no. of books of economics with the seller.? covers all topics & solutions for Commerce 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A seller has 150 books of economics and accountancy. Avg price of these books is rs 40. Avg price of Economics is rs 43 and that of Accountancy is rs 35. Find the no. of books of economics with the seller.?.
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