Question
The ratio of the cost price to the marked price of a book
is 3:7. If a discount of 25% is given on the book, the shopkeeper makes a profit of Rs. 150. Find the marked price of the book.Solution
ATQ,
Let the cost price of the book be Rs. ‘3x’ and the marked price be Rs. ‘7x’.
ATQ;
Selling price of the book = 7x × 0.75 = Rs. ‘5.25x’
Profit = 5.25x – 3x = Rs. ‘2.25x’
So, 2.25x = 150
Or, x = 66.67
So, marked price of the book = 7 × 66.67 = Rs. 467
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