Four students Khushi, Sonal, Darshan and Gourav are ranked 1 to 4, on the basis of their performance in a class test. The following data is given about their ranks: • If Khushi is ranked 1, then Sonal is not ranked 3. • If Sonal is not ranked 1, then Gourav is ranked 4. • If Darshan is not ranked 2, then Gourav is ranked 2. • If Darshan is ranked 3, then Gourav is not ranked 2. • If Gourav is ranked 3, then Khushi is not ranked 4.
who is rank 1 ?​