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Question: The average of 6 numbers is 8.5. When one number is discarded, the average of the remaining numbers becomes 7.2. What is the discarded number?
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Question: The average of 6 numbers is 8.5. When one number is discarded, the average of the remaining numbers becomes 7.2. What is the discarded number?
Question 1: The average of 6 numbers is 8.5. When one number is discarded, the average of the remaining numbers becomes 7.2. What is the discarded number?
View topic: গড় (Average)
7.8
9.8
10
15
Source: Exim Bank Ltd - Officer - 2004
Answer
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Answer: 15
Explanation:
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A student obtained 60, 75 and 85 marks respectively in 3 monthly examinations in physics and 95 marks in the final examination. The 3 monthly examinations are of equal weightage whereas the final examination is weighted twice as much as monthly examination. What is his average mark physics?
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১০০ জন শিক্ষার্থীর গণিতে গড় নম্বর ৭০, এদের মধ্যে ৬০ জন ছাত্রীর গড় নম্বর ৭৫ হলে ছাত্রদের গড় নম্বর কত?
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