Draw a plain scale to show yards for a map whose scale is 4 inches : 1 mile.
But 2640 yards is not a round number. Select a round number of 3000 yards.
1760 yards are represented by = 4 inches
3000 yards are represented by
Fig. 2.7.
Construction : Draw a line 6.8 inches long. Divide it into 6 equal parts each showing 500 yards. Sub-divide the left hand part into 5 equal divisions. Each will show 100 yards.