Multiple choice

The average marks of a student in 10 papers are 80. If the highest and the lowest scores are not considered, the average is 81. If his highest score is 92, what is the lowest score?

  1. 54

  2. 60

  3. 63

  4. 67

  5. Cannot be determined

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Total marks for 10 papers = 10 × 80 = 800. Excluding highest and lowest, average of 8 papers = 8 × 81 = 648. Sum of highest + lowest = 800 - 648 = 152. Given highest = 92, lowest = 152 - 92 = 60.