664, 332, 340, 170, ____, 89

  • Option 1)

    85

  • Option 2)

    80

  • Option 3)

    109

  • Option 4)

    178

  • Option 5)

    97

Answers (1)

664, 332, 340, 170, ____, 89

First number is double of second number.

So, 89×2= 178

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