CAT 1997 | Question: 117

Question

The average marks of a student in ten papers are $80$. If the highest and the lowest scores are not considered, the average is $81$. If his highest score is $92$, find the lowest.

• A. $55$ 
• B. $60$ 
• C. $62$
• D. Cannot be determined

Answer 1

Total marks = 80 * 10 = 800

Total if highest and lowest marks are not considered = 81 * 8 = 648

Highest mark + Lowest mark = 800 - 648 = 152

Lowest mark = 152 - 92 = 60 (Option B)