logarithm aptitude questions
2.  If log 2 = 0.3010 and log 3 = 0.4771, the value of log_{5} 512 is:  
Answer: Option C Explanation:

3. 


Answer: Option C Explanation:

4.  If log 27 = 1.431, then the value of log 9 is:  
Answer: Option C Explanation:
log 27 = 1.431 log (3^{3} ) = 1.431 3 log 3 = 1.431 log 3 = 0.477 log 9 = log(3^{2} ) = 2 log 3 = (2 x 0.477) = 0.954. 
5. 


Answer: Option A Explanation:
So, a + b = 1. 