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A bookseller marks his books at an advance of 69% on the actual cost of production. He allows a discount of 15% and also given a copy free for every dozen sold at a time. What rate per cent profit does the bookseller make, if books are sold in lots of 12?
  • a)
    32.6
  • b)
    47.5
  • c)
    24.9
  • d)
    None of these
Correct answer is option 'A'. Can you explain this answer?
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A bookseller marks his books at an advance of 69% on the actual cost o...
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A bookseller marks his books at an advance of 69% on the actual cost o...
Method to Solve :

CP = Rs X/dozen = 0.833/copy
So, MP = 1.69 x/dozen
SP = Rs 1.4365 x/13 copies = 0.1105 x/copy
So, profit = 32.6%
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A bookseller marks his books at an advance of 69% on the actual cost o...
Given data:
- Advance = 69% on the actual cost of production
- Discount = 15%
- Free copy = 1 for every dozen sold

To find: Rate of profit on selling books in lots of 12

Solution:
Let's assume that the actual cost of production for one book is Rs. x.

Marked price of 1 book = Cost price + 69% of cost price
= x + (69/100)x
= 1.69x

Selling price of 1 book after discount = Marked price - 15% of marked price
= 1.69x - (15/100) * 1.69x
= 1.4345x

Selling price of 12 books = 12 * 1.4345x
= 17.214x

For every dozen sold, the bookseller gives 1 free copy. So, effective price for 13 books = 17.214x.

Profit earned on selling 13 books = Selling price - Cost price
= 17.214x - 13x
= 4.214x

Profit percentage on selling 13 books = (Profit / Cost price) * 100
= (4.214x / 13x) * 100
= 32.38%

Therefore, the bookseller makes a profit of 32.38% on selling books in lots of 12.

Hence, option A (32.6) is the correct answer.
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A bookseller marks his books at an advance of 69% on the actual cost of production. He allows a discount of 15% and also given a copy free for every dozen sold at a time. What rate per cent profit does the bookseller make, if books are sold in lots of 12?a)32.6b)47.5c)24.9d)None of theseCorrect answer is option 'A'. Can you explain this answer? for Quant 2025 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about A bookseller marks his books at an advance of 69% on the actual cost of production. He allows a discount of 15% and also given a copy free for every dozen sold at a time. What rate per cent profit does the bookseller make, if books are sold in lots of 12?a)32.6b)47.5c)24.9d)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Quant 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bookseller marks his books at an advance of 69% on the actual cost of production. He allows a discount of 15% and also given a copy free for every dozen sold at a time. What rate per cent profit does the bookseller make, if books are sold in lots of 12?a)32.6b)47.5c)24.9d)None of theseCorrect answer is option 'A'. Can you explain this answer?.
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