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Percentages

SAT Math· difficulty 5/5

A store discounts 30% then 10% off discounted price. Total effective discount:

  • A

    37%37\%

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  • B

    45%45\%

  • C

    33%33\%

  • D

    40%40\%

Explanation

0.70×0.90=0.630.70 \times 0.90 = 0.63, so 37% off.

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