Maths GRE

What single discount is equivalent to two successive discounts of 15% and 10%

100 - {(100-first discount) X (100- second discount)/100}

= 100 - (100-15)X(100-10)/100 = 100 - 85 X 90/100 = 100 - 76.5 = 23.5

asked by Marco Victoria
  1. correct

    posted by Anonymous

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