A Story of NumbersClass 8 Mathematics Assertion & Reason Questions

Assertion (A): The modern number system is often called the 'Hindu-Arabic' system.

Reason (R): European scholars learned the system from the Arab world, who had in turn learned it from India, so the name reflects its path of transmission to Europe.

Assertion (A): The number 40 is represented as XL in the Roman numeral system.

Reason (R): The Roman numeral system is a positional, base-10 system.

Assertion (A): In the Egyptian number system, multiplying a number by 10 was a straightforward process of symbol replacement.

Reason (R): The Egyptian number system was a base-10 system where each landmark number was 10 times the previous one, with a unique symbol for each power of 10.