While measuring the length of a road, the reading of the scale at one end is 200 m and on the other end is 450 m. What is the length of road?
650 m
350 m
300 m
250 m
The length of the road = 450 m - 200 m = 250 m
While measuring the length of a knitting needle, the reading of the scale at one end is 3 cm and at the other end is 33.1 cm. What is the length of the needle?