logarithmic type questions to clear bank exams

If log 27 = 1.431 then the value of log 9 is = (a) 0.934 (b) 0.945 (c) 0.954 (d) 0.658

Your Answer

Log 27 = log 3^3 = 3 log 3 = 1.4 
log 3 =1.4/3

log 9 = log 3^2 = 2 log 3 = 2.8/3 = 0.934

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