Railways Sample Paper RRB (Assistant Loco Pilot) Sample Test Paper-12

  • question_answer
    Two successive discounts of 70% and 30% are equivalent to a single discount of

    A)  \[89%\]                      

    B)  \[75%\]          

    C)         \[79%\]               

    D)        \[100%\]

    Correct Answer: C

    Solution :

    Single discount \[=x+y+\frac{xy}{100}\] \[=-70-30+\frac{\left( -70\times -30 \right)}{100}\] \[=-100+21=-79%\] \['-'\]denotes discount. Hence, single discount equivalent to 79%


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