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Real Numbers — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsReal Numbers1 Mark
MCQ
A rational number can be expressed as a terminating decimal if the denominator has the factors :
  • A
    $2$ only
  • ✓
    $2$ or $5$ only
  • C
    $2$ or $3$ only
  • D
    $2, 3$ or $5$ only
✓

Answer

Correct option: B.
$2$ or $5$ only
A rational number can be expressed as a terminating decimal if the denominator has the factors $2$ or $5$ or both.
Any other factors in the denominator yield a non $-$ terminating decimal expansion.

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