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The chance of a student passing an exam is 20%. The chance of a student passing the exam and getting above 90% marks in it is 5% Given that a student passes the examination, the probability that the student gets above 90% marks is
1
\(\frac{1}{{18}}\)
2
\(\frac{1}{4}\)
3
\(\frac{2}{9}\)
4
\(\frac{5}{{18}}\)