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Ratio and Proportion — Mathematics STD 10 — Question

ICSE BoardEnglish MediumSTD 10MathematicsRatio and Proportion1 Mark
MCQ
The reciprocal ratio of $\frac{1}{9}: 2$ is:
  • A
    $9: \frac{1}{2}$
  • B
    $18: 1$
  • C
    $9: 2$
  • D
    $2: 18$
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