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

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

[A].

0.934

[B].

0.945

[C].

0.954

[D].

0.958

Answer: Option C

Explanation:

log 27 = 1.431

log (33 ) = 1.431

3 log 3 = 1.431

log 3 = 0.477

log 9 = log(32 ) = 2 log 3 = (2 x 0.477) = 0.954.