If log ₁₀ 2=0.3010, the value of log ₁₀ 80 is · ABC26GN2085
Subject: General Aptitude · Chapter: Logarithms
If $\log _{10} 2=0.3010$, the value of $\log _{10} 80$ is
(a)1.6020
(b)1.9030
(c)3.9030
(d)None of these
Answer
Explanation
$$\begin{aligned} \log _{10} 80= & \log _{10}(8 \times 10)=\log _{10} 8+\log _{10} 10=\log _{10}\left(2^{3}\right) \\ & +1=3 \log _{10} 2+1=(3 \times 0.3010)+1=1.9030 \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.
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