CBSE Class 7 Answered
A man sells an article at a gain of 5%. If he had sold it at 63 rupees less he would have lost 2% . Find the cost of the article
Asked by Vijayakairamkonda | 02 Dec, 2018, 20:37: PM
Let cost price be Rs. x.
Selling price in the first case = x + 5% of x = ![begin mathsize 16px style straight x plus 5 over 100 straight x equals fraction numerator 105 straight x over denominator 100 end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/297def47d9c4e5e0e690702d7af7c1d1.png)
![begin mathsize 16px style straight x plus 5 over 100 straight x equals fraction numerator 105 straight x over denominator 100 end fraction end style](https://images.topperlearning.com/topper/tinymce/cache/297def47d9c4e5e0e690702d7af7c1d1.png)
Selling price in the second case = x - 2% of x = ![begin mathsize 16px style straight x minus 2 over 100 straight x equals 98 over 100 straight x end style](https://images.topperlearning.com/topper/tinymce/cache/6d2df9ad955432acbdcaaf6eaec52c44.png)
![begin mathsize 16px style straight x minus 2 over 100 straight x equals 98 over 100 straight x end style](https://images.topperlearning.com/topper/tinymce/cache/6d2df9ad955432acbdcaaf6eaec52c44.png)
Accroding to the question,
![begin mathsize 16px style 105 over 100 straight x minus 98 over 100 straight x equals 63
fraction numerator 7 straight x over denominator 100 end fraction equals 63
straight x equals 6300 over 7
straight x equals Rs. space 900 end style](https://images.topperlearning.com/topper/tinymce/cache/6521c1877783d334d4a88c01b3c3810d.png)
Answered by Sneha shidid | 03 Dec, 2018, 09:29: AM
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