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ICSE Class 7 Answered

The difference between the selling price of an article at a profit of 15% and at a profit of 10% is 10rs .the cost price of the article   
Asked by Aliyawar0110 | 25 Oct, 2018, 07:59: PM
answered-by-expert Expert Answer
Let cost price of an article be Rs. x
According to the question,
begin mathsize 16px style straight x plus 15 over 100 straight x minus open parentheses straight x plus 10 over 100 straight x close parentheses equals 10
fraction numerator 15 x minus 10 x over denominator 100 end fraction equals 10
fraction numerator 5 straight x over denominator 100 end fraction equals 10
5 straight x space equals 1000
straight x equals 200 end style
Hence. cost price of an article is Rs. 200.
Answered by Sneha shidid | 26 Oct, 2018, 09:34: AM
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