The probability that a \(k\)-digit number does NOT contain the digits 0,5, or…

GATE · 2017 · CS · Set 1 · General Aptitude

The probability that a kk-digit number does NOT contain the digits 0,5, or 9 is

  1. A.

    0.3k0.3^k

  2. B.

    0.6k0.6^k

  3. C.

    0.7k0.7^k

  4. D.

    0.9k0.9^k

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