The marks obtained by S5 = 99 ⇒ The sum of marks of the students = 92 + 88 + 87 + 94 + 99 + 97 + 86 + 85 + 100 + 91 = 919 ⇒ The average marks of the students = 919/10 = 91.9 ⇒ Percentage more than the average marks of the students = [(99 – 91.9)/91.9] × 100 ⇒ Percentage more than the average marks of the students = [7.1/91.9] × 100 = 7.725 ≈ 7.73% ∴ Percentage more than the average marks of the students is 7.73%.