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Percentages

SAT Math· difficulty 4/5

30%30\% of a number is equal to 45%45\% of 8080. What is the number?

  • A

    108

  • B

    120

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  • C

    115

  • D

    100

Explanation

0.30x=0.45⋅80=360.30x = 0.45 \cdot 80 = 36, so x=120x = 120.

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