ABC26GN2040 · Logarithms

Subject: General Aptitude · Chapter: Logarithms · Exam: · Marks: · Difficulty:

$\log _{10} \log _{10} \log _{10}\left(10^{1010}\right)$ is equal to
(a)0
(b)1
(c)10
(d)100
Answer
Answer (as printed): B
Explanation
$\log _{10} \log _{10} \log _{10}\left(10^{1010}\right)$ $=\log _{10} \log _{10}\left(10^{10} \log _{10} 10\right)=\log _{10} \log _{10}\left(10^{10}\right)$ $=\log _{10}\left(10 \log _{10} 10\right)=\log _{10} 10=1$.

Explanation as extracted from the printed page; notation may be imperfect.

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