alleryAncient Mesopotamia built its numbers on which base?
A10
B12
C20
D60
Answer & Solution
Correct answer: D. 60
1. In ancient Mesopotamia the base for constructing numbers was 60.
2. Ten served only as an intermediate base for numbers below 60.
3. Twenty and twelve are linked to other counting traditions.
_Source: Wikipedia, Ethnomathematics, Mesopotamia_
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