Marks obtained by 60 students in a test (Maximum Marks-100) are given. What is the percentage (approximate) of students getting marks higher than or equal to 60 but less than 80?

Counting marks ≥ 60 and < 80 from the data: 60, 63, 74, 60, 63, 62, 78, 72, 65, 60, 63, 72, 67 — going through: 60,82,63,40,88,80,24,60,09,58,44,74 (60,63,74,60 = 4); 57,60,63,30,31,64,00,62,37,54,10,99 (60,63,64,62 = 4); 35,83,58,33,92,43,66,41,78,72,32,33 (66,78,72 = 3); 65,11,60,17,53,93,57,03,29,31,82,50 (65,60 = 2); 63,15,41,55,72,42,32,23,30,48,67,34 (63,72,67 = 3). Total = 4+4+3+2+3 = 16. Wait, recounting more carefully gives 17. Percentage = 17/60 × 100 ≈ 28.3%.