A class of 93 students took a Physics test. 10 students had an average score of 90. The remaining students had an average score of 75. What is the average score (rounded off to one decimal place) of the whole class?
Given
Total students = 93
Average score of 10 students = 90
Average score of remaining 83 students = 75
Formula Used
Overall Average = (Sum of all scores) / (Total number of students)
Solution
Sum of scores of the first 10 students =
Sum of scores of the remaining 83 students =
Total sum of scores = 900 + 6225 = 7125
Overall average =
Overall average
Rounded off to one decimal place, it is 76.6
Final Answer
So the correct answer is (b)
English
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A class of 93 students took a Physics test. 10 students had an average score of 90. The remaining students had an average score of 75. What is the average score (rounded off to one decimal place) of the whole class?
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The average of 11 results is 61. If the average of the first 6 results is 64 and that of the last 6 is 61, find the 6th result.
Let five odd consecutive natural numbers are P,Q,R,S and T . What is their average ？
Suggested Test Series
Suggested Test Series
The average age of 31 students of a class is 30 years. If the age of the teacher is also included, the average age of the whole group becomes 31 years. The age (in years) of the teacher is:
The average of 13 numbers is 7. If each number is multiplied by 2, then what will the new average be?
A cricketer has an average of 88 runs over 10 innings. If he scores 219 runs in the 11th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A cricketer has an average of 68 runs over 9 innings. If he scores 130 runs in the 10th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A cricketer has an average of 62 runs over 5 innings. If he scores 296 runs in the 6th inning, by how many runs does his average score increase?
A class of 93 students took a Physics test. 10 students had an average score of 90. The remaining students had an average score of 75. What is the average score (rounded off to one decimal place) of the whole class?
A cricketer has an average of 57 runs over 10 innings. If he scores 195 runs in the 11th inning, by how many runs (rounded off to the nearest whole number) does his average score increase?
A stationery shop sells premium, standard, and basic pens at ₹15, ₹10, and ₹5 each, respectively. The pens are sold in the ratio 3 : 2 : 5. What is the average selling price (in ₹) of a pen?
The average of 11 results is 61. If the average of the first 6 results is 64 and that of the last 6 is 61, find the 6th result.
Let five odd consecutive natural numbers are P,Q,R,S and T . What is their average ？
