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8th Class Mathematics Related to Competitive Exam Question Bank Arithmetic

  • question_answer
    A customer saves Rs.15 when a discount of 20% on the marked price is offered. What did he pay for the article?

    A) Rs.120                  

    B) Rs.80

    C) Rs.60       

    D) Rs.75

    Correct Answer: C

    Solution :

    We have \[=\left( \frac{x+y}{u+v} \right)\] \[1km/h=\frac{5}{18}m/s\] \[1m/s=\frac{18}{5}km/h.\] (\[xy=yz\]saving =MP-SP) \[{{y}^{2}}=xz\] \[xyz=x\]               


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