Mr. X starts walking towards south from point A. After walking 20 m., he reaches at point B. Now he turns left and walks 20 m and reaches at point C. Now he turns 45 degree anticlockwise, walks a distance sqrt(3) m and reaches at the point D. What is the shortest distance between point A and point D ?
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Partial paper: 149 of 150 questions · renumbered after exclusion · q19 excluded no answer published · keyed from model key 02 02 2025