Answers

2015-05-19T12:11:22+05:30
            3.89=389/100
and,      3.90=390/100
 multiply both no. by 10
  now   3890/1000<3892/1000<3894/1000<3898/1000<3900/1000
 the rational no. are  3.892,3.894,3.898
 i don,t know how to find irrational no.
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