Maths-
SAT
Easy

Question

If fraction numerator 2 a over denominator b end fraction equals 1 half, what is the value ofb over a

  1. 1 over 8
  2. 1 fourth
  3. 2
  4. 4

The correct answer is: 4


    Given fraction numerator 2 a over denominator b end fraction equals 1 half
    b over a equals ?
    a over b equals fraction numerator 1 over denominator 2 cross times 2 end fraction
    a over b equals 1 fourth
    b over a equals 4 over 1 equals 4       [ becauseinverse of both sides]

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