Home › CMA Foundation › businessmathematics › Logarithms › The logarithm of a number with base 10 is called:
The logarithm of a number with base 10 is called:
ANatural logarithm
BBinary logarithm
CIterated logarithm
DCommon logarithm
Answer & Solution
Correct answer: D. Common logarithm
1. A logarithm with base 10 is the common logarithm.
2. A logarithm with base e (Euler's number) is the natural logarithm, written ln.
3. ICMAI distinguishes common (log) and natural (ln) logarithms.
_Source: ICMAI BoS CMA Foundation Paper 3 (Business Mathematics & Statistics), Module 2 §2.2 (Indices and Logarithms) + Module 5 (Standard Deviation), p. 112-160 + 318-340_