In a rubber roll sheller, $250 \mathrm{~mm}$ diameter rolls are set at a clearance of $1 \mathrm{~mm} .$ If the mean thickness of paddy grains being shelled is $2 \mathrm{~mm}$, the length of husking zone in $\mathrm{mm}$ ( rounded off to two decimal places) is__________
In a rubber roll sheller, $250 \mathrm{~mm}$ diameter rolls are set at a clearance of $1 \mathrm{~mm} .$ If the mean thickness of paddy grains being shelled is $2 \mathrm{~mm}$, the length of husking zone in $\mathrm{mm}$ ( rounded off to two decimal places) is__________