Aptitude : : Logarithms Questions & Answers

  1. If log2 [log3 (log2 x)], then x is equal to:

A. 512

B. 218

C. 12

D. 0

  1. If log3 n - log3 4, then find the value of n?

A. 36

B. 40

C. 10

D. 30

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

A. 1

B. 5

C. 3

D. 10

  1. If log10 2 = 0.3010, then the value of log10 2 is:

A. 0.3241

B. 0.6911

C. 0.6990

D. 0.7525

  1. If a = bx, b = cy and c = az, then the value of xyz is:

A. 1

B. -1

C. 0

D. abc