All India Engineering / Architecture Entrance Examination (AIEEE)

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AIEEE 2009 Maths

Q. 7. If the mean deviation of the numbers 1, 1 + d, 1 + 2d,…….  ……, 1 + 100d from their mean is 255, then the d is equal to

1. 20.2
   
   
2. 10.0
   
   
3. 20.0
   
   
4. 10.1

Sol:  

Answer: (4)

Q. 8. Let A and B denote the statements

1. both A and B are false
   
   
2. A is true and B is false
   
   
3. A is false and B is true
   
   
4. both A and B are true

Sol:

Answer: (4)

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