Mean and weighted average.
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Q1 · Average · EASY
The average of 5 consecutive odd numbers is 27. What is the largest of these numbers?
Q2 · Average · MEDIUM
A batsman has an average of 42 runs in 15 innings. How many runs must he score in his next innings to raise his average to 44?
Q3 · Average · MEDIUM
The average weight of 30 students in a class is 45 kg. If the weight of the teacher is included, the average becomes 46 kg. What is the weight of the teacher?
Q4 · Average · HARD
In a class of 50 students, the average marks in Mathematics are 72. If 10 students who scored an average of 90 marks are excluded, what is the average marks of the remaining students?
Q5 · Average · MEDIUM
The average of 6 numbers is 35. If one number is excluded, the average becomes 32. What is the excluded number?