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Average weight of 20 boys is 55 kg and of 15 girls is 50 kg. Find the average weight of all students.
Average weight of 25 boys is 60 kg and of 15 girls is 52 kg. Find the average weight of all students.
The average of 7 numbers is 30. A new number 54 is added. Find the new average.
Average weight of 18 boys is 48 kg and of 12 girls is 44 kg. Find the average weight of all students.
The average of 6 numbers is 18. A new number 32 is added. Find the new average.
Average weight of 22 boys is 50 kg and of 18 girls is 46 kg. Find the average weight of all students.
The average of 10 numbers is 25. A new number 47 is added. Find the new average.
The average of 8 numbers is 15. A new number 24 is added. Find the new average.
The average of 5 numbers is 20. A new number 32 is added. Find the new average.
Find the average of 9, 18, 27.