Question

while measuring the length of a pencil the reading of a scale at one end is 5.5 cm and that at the other end is 17.2 cm what is the length of the pencil​

Answer 1

Explanation:

Length of pencil = reading of second end - reading of first end

= 9.2 cm - 2.5 cm

= 6.7 cm

But 1 cm = 10 mm

6.7cm = 67 mm

So, length of pencil = 67 mm