Question

 Average of 17 students in a class is X. When their marks are arranged in ascending order
it was found to be in Arithmetic Progression. The class teacher found that rank the
students who ranked 15th, 11th, 9th and 7th had copied the exam and hence they are suspended. Now the average of the remaining
class is Y. Then
1. X =Y
2. X >Y
3. X<Y
4. X = 2Y
5. Data insufficient​

Answer 1

Answer:

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