While measuring the length of a knitting needle, the reading of the scale at one
end is 3.0 cm and at the other end is 33.1 cm. What is the length of the needle?
Answer:
Reading of the scale at one end = 3.0 cm and
Reading of the scale at the other end = 33.1 cm
Therefore, length of the needle = (33.1-3.0)cm = 30.1cm
