If log10000x = -1/4, then x is ?

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If log₁₀₀₀₀x = -1/4, then x is ?

1. 1 / 100
2. 1 / 10
3. 1 / 20
4. None of these

Correct Option: B

∵ log₁₀⁴x = -1/4
⇒ x = (10⁴)^-1/4
= 1/10