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Real Numbers — Maths STD 10 — Question

CBSE BoardEnglish MediumSTD 10MathsReal Numbers1 Mark
MCQ
Classify the following numbers as rational or irrational : $2-\sqrt{5}$
  • ✓
    Irrational number
  • B
    Rational number
  • C
    Less Data
  • D
    None of the above
✓

Answer

Correct option: A.
Irrational number
$2$ is rational
$\sqrt{5}​=2.035 ........$ which is non terminating and non repeating hence irrational number.
We know that, rational $−$ irrational $=$ irrational number.
Hence $2 - 5​ = $ irrational number

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