Question: You multiply a number with a non-repeating decimal by its reciprocal and get 1. You are told the decimal is rational. Which argument justify this result?
A) Rational numbers always repeat
B) The product of a number and its reciprocal is always 0.
C) Every rational number has a reciprocal (except 0) and their product is 1
D) A rational number has no reciprocal
Correct answer: C
Grade: 8 | Topic: Number System | Difficulty: Medium | Standard: 8. NS. A. 1