Top 100+ Logarithm Aptitude Questions and Answers - 2
Question: 6
The value of log216 is
(A) 2
(B) 3
(C) 4
(D) 5
Ans: C
log216 = log224 = 4 log22 = 4.
Question: 7
If log10a = p and log10b = q, then what is log10(apbq) equal to
(A) p2 + q2
(B) p2 - q2
(C) p2q2
(D) pq
Ans: A
Given log10a = p, log10b = q
log10(apbq) log10ap + log10bq
= plog10a + qlog10b = p2 + q2
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