Subject
Quantitative Aptitude
Topic
Average
The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was What was the average mark obtained by all students?
The average mark obtained by 15 students was 10 and the average mark obtained by 10 students was What was the average mark obtained by all students?
ক)
10খ)
8গ)
12ঘ)
15Explanation
Total mark of first 15 students = 15 * 10 = 150 Total mark of first 10 students = 15 * 10 = 150 Total mark of 25 students = 150 + 150 = 300 Average = 300 / 25 = 12Related questions
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