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Number systems — Maths STD 9 — Question

Gujarat BoardEnglish MediumSTD 9MathsNumber systems1 Mark
MCQ
Which of the following is a rational number$?$
  • A
    $\sqrt{5}$
  • B
    $0.101001000100001...$
  • C
    $\pi$
  • ✓
    $0.853853853...$
✓

Answer

Correct option: D.
$0.853853853...$

The decimal expansion of a rational number is either terminating or non-terminating recurring.
Hence, $0.853853853... $ is a rational number.
Hence, the correct option is $(d).$

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