Question

If log 27 = 1.431, then the value of log 9 is:

Answer 1

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Answer 2

given 
log 27 = 1.431 
⇒ log 3³ = 1.431
⇒3 log 3 = 1.431 [∵ log a^n = n log a]
⇒ log 3 = 1.431/3 =0.477

therefore
log 9 = log 3²
= 2 log 3
= 2* (0.477)
=0.954