Aptitude : : Logarithms Questions & Answers
- If log10 2 = a, then find the value of $\log_{10}{\left(\dfrac{1}{200}\right)}$ is:
A. -(a + 2)
B. -(a + 1)
C. (a + 2)
D. (a + 1)
- Find the value of $ \dfrac{1}{3}\log_{10}{125}$ - 2 $\log_{10}{4}$ + $\log_{10}{32}$
A. 0
B. 1
C. 2
D. 3
- Find $\log{\left(\dfrac{\text a^2}{\text {bc}}\right)}$ + $\log{\left(\dfrac{\text b^2}{\text {ac}}\right)}$ + $\log{\left(\dfrac{\text c^2}{\text {ab}}\right)} $
A. 1
B. 0
C. abc
D. -1
- If log2 x = -6, x = ?
A. $ \dfrac{1}{32}$
B. $ \dfrac{1}{64}$
C. $32$
D. $ 64$
- If log4 x + log2 x = 12, then find the value of x?
A. 8
B. 16
C. 256
D. 1024