JEE Main 2009Annual, Paper 1MathematicsMediumStatistics and Probability258× since 2002If the mean deviation of number 1, 1 + d, 1 + 2d,........, 1 + 100d from their mean is 255, then the d is equal toAOption A. 20.0BOption B. 10.1COption C. 20.2DOption D. 10.0CheckSkip · show solution