Correct Answer - Option 1 : 16
th
Given,
Total number of students = 39
Ashok rank from the last = 17
Suresh is 7 ranks ahead of Ashok.
Suresh rank from last = 17 + 7 = 24
Let Suresh rank from the start be x
Total number of students = Rank from start + rank from last - 1
39 = x + 24 - 1
x = 39 - 24 + 1
= 16
So, Suresh's rank from start = 16
Hence, the correct answer is "16th".