Subject
Quantitative Aptitude
Topic
Percentage
In a History examination, the average for the entire class was 80 marks. If 10% of the students scored 35 marks and 20% scored 90 marks, what was the average marks of the remaining students of the class ?
In a History examination, the average for the entire class was 80 marks. If 10% of the students scored 35 marks and 20% scored 90 marks, what was the average marks of the remaining students of the class ?
ক)
25খ)
50গ)
75ঘ)
100Explanation
Let the number of students in the class be 100 and let this required average be x. Then, (10 95) + (20 90) + (70 x) = (100 80) => 70x = 8000 - (950 + 1800) = 5250 => x = 75.Related questions
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