The chance of an event happening is the square of the chance of a second event but the odds against the first are the cube of the odds against the second. The chances of the events are

  • A

    $\frac{1}{9},\,\frac{1}{3}$

  • B

    $\frac{1}{{16}},\,\frac{1}{4}$

  • C

    $\frac{1}{4},\,\frac{1}{2}$

  • D

    None of these

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