Answer: 20 times
Explanation:
Given: The length of piece of wire = 10 millimeters
The length of screwdriver = 20 centimeters
We know that 1 cm = 10 mm
Therefore, the length of screwdriver =
millimeters
The ratio of the length of screwdriver and length of wire is given by :-

The screwdriver is 20 times as long as the wire.