The grades are 93, 95, 83, 82, 74, 73, 90, 81, 70, and 94.
There are 10 grades.
Sorting in ascending order,
70
73
74
81
82
83 ---------- 6th
90
93
94
95
The 60th percentile rank is the 6th number from the list of 10 numbers.
This is >>>
1.6m questions
2.0m answers