Question

The cost price of 16 book is equal to the selling price of 11 books. Find profit or loss percent.

Answer 1

cost price is 10₹

16 × 10 = 160₹

selling is 160 ₹ of 11 books

160/11 = 14.545454₹

profit = 14.545454 - 10 = 4.545454₹

profit in %

4.545454
--------------- × 100
10

= 45.45% profit

Answer 2

$\textbf {Hey there, here is the solution.}$

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Let the cost price of 1 book be x

.

STEP 1: Find the cost price of 11 books:

Cost price of 11 books = 11x

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STEP 2: Find the selling price of 11 books:

Selling price of 11 books = 16x

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STEP 3: Find profit/loss:

Since 16x is more than 11x

⇒ It is a profit

.

Profit = 16x - 11x = 5x

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STEP 4: Find profit percentage:

Profit percentage = 5x/11x x 100 = 45.45%

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Answer: The profit percentage is 45.45%

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⭐$\textbf {Cheers}$⭐