Introduction


Aptitude : : Logarithms Questions & Answers

  1. If log 2 = 0.30103, find the number of digits in 256 is:

A. 17

B. 19

C. 23

D. 25

  1. The equation loga x + loga (1 + x) = 0 can be written as?

A. x2 + x - 1 = 0

B. x2 + x + 1 = 0

C. x2 + x - e = 0

D. x2 + x + e = 0

  1. Find the value of log x + log $\dfrac{1}{ \text{x}}$

A. 0

B. 1

C. -1

D. $\dfrac{1}{2}$

  1. If 2 log4 x = 1 + log4 (x - 1), find the value of x?

A. 2

B. 1

C. 4

D. 3

  1. If 55 - x = 2x - 5, find the value of x?

A. 5

B. 0

C. 1

D. Can't be determined