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Mathematics

If 2 log x = log 250 - 1, the value of x is :

  1. 17

  2. -5

  3. 5

  4. 10

Logarithms

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Answer

Given,

⇒ 2 log x = log 250 - 1

⇒ 2 log x = log 250 - log 10

⇒ log x2 = log 25010\dfrac{250}{10}

⇒ x2 = 25

⇒ x = 25\sqrt{25} = 5.

Hence, Option 3 is the correct option.

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