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Number System Questions

  • Numerical Ability - Number System
Question

Which one of the following numbers has rational square root?

  • A) 0.4
  • B) 0.09
  • C) 0.9
  • D) 0.025
  • E) None of these
Solution

Ans.2

√0.09 = 9/100=3/10=0.3

0.3, which is rational

 

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