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Question 1 - Figure it out - Page 69 - Chapter 3 Class 8 - A Story of Numbers (Ganita Prakash)
Last updated at November 24, 2025 by Teachoo
Figure it out - Page 69
Class 8 (Ganita Prakash & Old NCERT)
Chapter 3 Class 8 - A Story of Numbers (Ganita Prakash)
- Introduction
- The Mechanism of Counting
- Some Early Number Systems
- Roman Numerals
- Figure it out - Page 60, 61
- Egyptian Number System
- Variations on the Egyptian System and the Notion of Base
- Adding Egyptian Numerals
- Multiplying Egyptian Numerals
- Distributive Law – For Egyptian Numerals
- Abacus that Makes Use of the Decimal System
- Shortcomings of the Egyptian System
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Figure it out - Page 69
- Mesopotamian Number System
- Mayan Number System
- Chinese Number System
- Hindu Number System
- Evolution of Ideas in Number Representation
- Figure it out - Page 80
Transcript
Question 1 Can there be a number whose representation in Egyptian numerals has one of the symbols occurring 10 or more times? Why not?The Egyptian system is The Egyptian system is a Base-10 grouping system. This means it follows a strict rule of "Regrouping" or "Trading Up": As soon as you collect 10 Strokes (|), you must trade them for 1 Arch (⋂) As soon as you collect 10 Arches (⋂), you must trade them for 1 Spiral Because of this rule, the maximum number of identical symbols you can ever write in a row is 9. If you wrote the 10th one, the group would instantly transform into the next larger symbol. Thus, the answer is No, it is impossible for a valid Egyptian numeral to have 10 identical symbols.
