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Is the following number rational or irrational?

0.3 pi
Choose 1 answer:
(A) Rational
(B) Irrational

Is the following number rational or irrational?\newline0.3π0.3 \pi\newlineChoose 11 answer:\newline(A) Rational\newline(B) Irrational

Full solution

Q. Is the following number rational or irrational?\newline0.3π0.3 \pi\newlineChoose 11 answer:\newline(A) Rational\newline(B) Irrational
  1. Nature of 0.3π0.3 \pi: Evaluate the nature of the number 0.3π0.3 \pi.\newline0.3π0.3 \pi is a multiple of the number π\pi.\newlinePi (π\pi) is known to be an irrational number because it cannot be expressed as a fraction of two integers.
  2. Multiplying irrational and rational numbers: Determine if multiplying an irrational number by a rational number results in a rational or irrational number.\newlineMultiplying an irrational number by a non-zero rational number results in an irrational number.\newlineSince 0.30.3 (which is rational) is not zero, 0.3π0.3 \pi is irrational.

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