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Question: The average mark obtain by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtined by all students?
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Question: The average mark obtain by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtined by all students?
Question 1: The average mark obtain by 15 students was 10 and the average mark obtained by 10 students was 15. What was the average mark obtined by all students?
View topic: গড় (Average)
10
12.5
15
12
Source: বিসিআইসি - সহকারী প্রকৌশলী (কমার্শিয়াল) - 10-12-2021
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Answer: 12
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