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If log 27 = 1.431, then the value of log 9 is: A. 0.934 B. 0.945 C. 0.954 D. 0.958

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Math Magician

First,rewrite log 27 as 3log3 So,log3 would come out to be 0.477 Then,write log27 as log9+log3 So,log 9= log27-log3 =1.431-0.477 =0.954
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C
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Tutor

C. .0954
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Tutor

log 27 = 3log3 log 9 = 2 log 3 =2/3 *(1.431) =0.954
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Mathematics for JEE Mains/Advanced, XI & XII (All Boards)

(2/3)*1.431 as log27/log9 = 3/2
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Headstart to assured 95+ score in math

C
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Home Tutor

The correct answer is C. 0.954
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Headstart to assured 95+ score in math

.954
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