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SSC Sample Paper Mock Test-19 SSC CGL Tear-II Paper-1

  • question_answer
    A discount series of 10%, 20% and 40% is equal to a single discount of

    A) 50.0%

    B)  56.8%     

    C)  60.2%

    D)  70.28%

    Correct Answer: B

    Solution :

      Required discount\[=100-\left( \frac{100\times 90}{100} \right)\left( \frac{80}{100} \right)\times \frac{60}{100}\] \[=100-\frac{100\times 90\times 80\times 60}{100\times 100\times 100}\] \[=100-43.2=56.8\]


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