alleryWhich base did ancient Mesopotamia use to build its numbers?
A10
B20
C12
D60
Answer & Solution
Correct answer: D. 60
1. Mesopotamian numbers were built on a base of 60.
2. Ten served as an intermediate base below 60.
3. Twenty is the West African and Welsh pattern.
_Source: Wikipedia, Ethnomathematics, section Mesopotamia_
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