Pitch of screw gauge is 
. Circular scale has 250 divisions. While measuring the diameter of a wire the linear scale reads 15 divisions and 100 divisions coincides with reference line of linear scale. Two full turns of the circular scale of screw gauge cover a distance of 
on scale. The total number of divisions on circular scale is 50. Further, it is found that screw gauge has a zero error of 
. While measuring the diameter of a thin wire a student notes the main scale reading of 
and the number of circular scale division in line, with the main scale is 35 . The diameter of the wire is :
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