If log ₁₀ 2=0.3010, the value of log ₁₀ 5 is · ABC26GN2084

Subject: General Aptitude · Chapter: Logarithms

If $\log _{10} 2=0.3010$, the value of $\log _{10} 5$ is

(a)0.3241

(b)0.6911

(c)0.6990

(d)0.7525

Answer

Answer (as printed): C

Explanation

$$\begin{aligned} \log _{10} 5 & =\log _{10}\left(\frac{10}{2}\right)=\log _{10} 10-\log _{10} 2=1-\log _{10} 2 \\ & =(1-0.3010)=0.6990 \end{aligned}$$

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

Study loop for Logarithms

1. Practise the PYQsPrevious-year questions, with answers

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