If log 27 = 1.431, then the value of log 9 is :  Choose the correct choice from the following answers:	A) 0.934	B) 0.945	C) 0.954	D) 0.958	E) None of these
Solution   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 × 0.477) = 0.954. Answer 0.954
<result>C</result>
If log 27 = 1.431, then the value of log 9 is :