Aptitude - Logarithm Questions and Answers with Solutions - Logarithm Formulas, Shortcuts and Tricks

Logarithm create maths simple. Finding out this chapter can assist you in determination and simplifying sophisticated numerical expressions. Rules of exponent may also be accustomed notice the sq. and root of numbers. These Logarithm Aptitude Questions and Answers will helps you in various Interviews, Competitive and entrance Exams.

1. Which of the following statements is not correct?

[A] log₁₀ 10 = 1

[B] log (2 + 3) = log (2 x 3)

[C] log₁₀ 1 = 0

[D] log (1 + 2 + 3) = log 1 + log 2 + log 3

2. If log 2 = 0.3010 and log 3 = 0.4771, the value of log₅ 512 is:

[A] 2.870

[B] 2.967

[C] 3.876

[D] 3.912

[A] ¹/₆

[B] ¹/₄

[C] ¹/₂

[D] ¹/₈

4. If log 27 = 1.431, then the value of log 9 is:

[A] 0.934

[B] 0.945

[C] 0.954

[D] 0.958

[A] a + b = 1

[B] a - b = 1

[C] a = b

[D] a² - b² = 1

[A] - (1 + a)

[B] (1 + a)^-1

[C] ^a/₁₀

[D] ¹/_10a

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7. If log₁₀ 2 = 0.3010, then log₂ 10 is equal to:

[A] ⁶⁹⁹/₃₀₁

[B] ¹⁰⁰⁰/₃₀₁

[C] 0.3010

[D] 0.6990

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8. If log₁₀ 2 = 0.3010, the value of log₁₀ 80 is:

[A] 1.6020

[B] 1.9030

[C] 3.9030

[D] None of these

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9. If log₁₀ 5 + log₁₀ (5x + 1) = log₁₀ (x + 5) + 1, then x is equal to:

[A] 1

[B] 3

[C] 5

[D] 10

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10.

[A] 0

[B] 1

[C] 5

[D] 60

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Aptitude - Logarithm Questions and Answers with Solutions - Logarithm Formulas, Shortcuts and Tricks

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