Select the correct answerA person sells a book for Rs.11. He gains as many percent as its cost price in rupees. What is the cost price?Options20103040
Question
Select the correct answerA person sells a book for Rs.11. He gains as many percent as its cost price in rupees. What is the cost price?Options20103040
Solution
The problem states that the gain percentage is equal to the cost price.
Let's denote the cost price as 'x'.
So, according to the problem, the selling price (Rs.11) is equal to the cost price plus the gain.
The gain is given as a percentage of the cost price, which is 'x' percent of 'x'.
So, we can write the equation as follows:
x + (x * x)/100 = 11
Solving this quadratic equation will give us the possible values for 'x'.
The solutions to this equation are x = 10 and x = -110.
Since the cost price cannot be negative, the cost price of the book is Rs.10.
So, the correct answer is 10.
Similar Questions
A person sells a book for Rs.11.He gains as many percent as its cost price in rupees.What is the cost price?Rs.10Rs.12Rs.7.50Rs.5.50
Select the correct answerAn item is sold for Rs.7130 making a 15% profit. What is the cost price (in Rs) of this item?Options6125600062506200
Select the correct answerA trader sold an article at profit of 20%. Had he bought that article at 60% less price and sold it at Rs 90 less, then he would have gained 50%. What is the value (in Rs) of cost price?Options150250300200
Select the correct answerOn selling an article for rupees 800, a person loses 20% of its selling price. At what price should be sell it to gain 25% on its cost price?Options1,2801,2501,2001,152
Select the correct answerA boy incurs 5% loss by selling a book for Rs.1000. At what price should the book be sold to earn 5% profit?Options10001200None of these1105.26
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.