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SSC Sample Paper Mock Test-1 SSC CGL Tear-II Paper-1

  • question_answer
    If 7% of the sale price of an article is equivalent to 8% of its cost price and 9% of its sale price exceeds 10% of the cost price by Rs. 1, then what is the cost price of the article?

    A) Rs. 280             

    B)  Rs.300

    C)  Rs. 400            

    D)  Rs. 350

    Correct Answer: D

    Solution :

    Cost price of article = Rs. x and selling price of article =Rs. y \[y\times \frac{7}{100}=x\times \frac{8}{100}\] \[\therefore \]                  \[y=\frac{8x}{7}\] According to the question, \[y\times \frac{9}{100}=x\times \frac{10}{100}=1\] \[\Rightarrow \]   \[\frac{8x}{7}\times \frac{9}{100}-\frac{x}{10}=1\] \[\Rightarrow \]   \[\frac{18x}{175}-\frac{x}{10}=1\] \[\Rightarrow \]   \[\frac{36x-35x}{350}=1\] \[\therefore \]                  \[x=\]Rs. 350


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