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Maths CBSE Live product
Class 8 (2026-27)
A story of numbers
Introduction to Base Number Systems and Place value
9.
AR - different base numbers
Question:
1
m.
Assertion (A):
The Mayan number system is descried as 'almost' a base -\(20\) system.
Reason (R):
The Mayans used a number of \(360 (20 \times 18)\) instead of \(400(20^2)\) for their third landmark.
Choose the correct answer:
A is true, but R is false
Both A and R are true, but R is not the correct explanation of A
Both A and R are true, and R is the correct explanation of A
A is false, but R is true
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