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Which mathematical contribution was included in knowledge spread from India?

Answer and explanation

Correct answer: Decimal system

The direct answer is A: the decimal system was a mathematical contribution associated with knowledge that spread from India. To understand the idea, a decimal system is a way of writing numbers using ten basic digits, usually 0 to 9, with place value. In a place-value system, the same digit changes value according to its position; for example, 5 can mean five, fifty, or five hundred. The use of zero and place value made calculation much easier and influenced mathematics beyond India. Option A is therefore the relevant contribution. Option B is wrong because Roman numerals are associated with Roman civilization, not a contribution described as spreading from India. Option C is wrong because an abacus is a counting device, not the specific mathematical system asked about. Option D is wrong because a compass is mainly a navigation instrument, not a mathematical number system. The question asks for a contribution from India, not every ancient invention. Memory cue: India, zero, place value, and decimal notation belong together.

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Decimal SystemMathematicsIndia Contribution

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