Quantitative Aptitude - Logarithms

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Question - 1

The value of log2 16 is:

  • A \(1\over 8\)
  • B 4
  • C 8
  • D 16

Question - 2

The value of log343 7 is:

  • A \(1\over 3\)
  • B -3
  • C \(-\frac { 1 }{ 3 } \)
  • D 3

Question - 3

The value of log5(\(1\over 125\)) is :

  • A 3
  • B -3
  • C \(1\over 3\)
  • D \(-\frac { 1 }{ 3 } \)

Question - 4

The value of \(log_{ \sqrt { 2 } }\quad 32\) is:

  • A \(5\over 2\)
  • B 5
  • C 10
  • D \(1\over 10\)

Question - 5

The value of log10(.0001) is:

  • A \(1\over 4\)
  • B \(-\frac { 1 }{ 4 } \)
  • C -4
  • D 4

Question - 6

The value of log(.01)(1000) ia :

  • A \(1\over 3\)
  • B \(-\frac { 1 }{ 3 } \)
  • C \(3\over 2\)
  • D \(-\frac { 3 }{ 2 } \)

Question - 7

The logrithm of 0.0625 to the base 2 is:

  • A -4
  • B -2
  • C 0.25
  • D 0.5

Question - 8

If log3 x=-2, then x is equal to:

  • A -9
  • B -6
  • C -8
  • D \(1\over 9\)

Question - 9

If log8 x=\(2\over 3\), then the value of x is:

  • A \(3\over 4\)
  • B \(4\over 3\)
  • C 3
  • D 4

Question - 10

If logx(\(9\over 16\))=-\(1\over 2\), then x is equal to :

  • A \(-\frac { 3 }{ 4 } \)
  • B \(3\over 4\)
  • C \(81\over 256\)
  • D \(256\over 81\)