Question

You are provided with a scale as shown below. Which of the following cannot be measured with scale by using it only once?

• A. 0.15 m
• B. 0.20 m
• C. 0.35 m
• D. 0.10 m

Answer 1

The correct option is C 0.35 m

This scale is 30 cm long so by using it only once a distance of up to 30 cm can be measured.
We know, 1 m = 100 cm
1 cm = 0.01 m
So, 30 cm = 30 x 0.01= 0.30 m
Hence, 0.35 m cannot be measured with this scale by using it only once.