Question

Which of the following distances cannot be measured with the given scale by using it only once?

• A.
  0.15 metre
• B.
  0.2 metre
• C.
  0.11 metre
• D. 0.05 metre

Answer 1

The correct option is B

0.2 metre
Now, we know 1 m = 100 cm
1 cm = 0.01 m
15 cm = 0.15 m.
0.15 m is the maximum value that can be measured with this scale using it only once.
Therefore, 0.2 m or 20 cm cannot be measured with this scale using it only once.