If the mean deviation of the numbers 1,

Question:

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

  1. 10.1 

  2. 20.2 

  3. 10.0 

  4. 20.0

Correct Option: 1

Solution:

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