Question

You are provided three scales A, B, and C as shown in the figure to measure a length of 10cm . For the correct measurement of the length, you will use the scale __

• A.

  

• B.

  

• C.

  

• D. Any of the three scales

Answer 1

The correct option is D

Any of the three scales

The explanation for the correct option:

The total measurement we can take from the scale:

1. A is $15-3=12\mathrm{cm}$, so 10 cm can easily be measured from this scale.
2. B is $15-3=12\mathrm{cm}$, so 10 cm can easily be measured from this scale
3. C is $13\mathrm{cm}$ as clear from the figure, so 10cm can easily be measured from this scale.

As all the scales A, B and C can measure $13\mathrm{cm}$ maximum,

Therefore, Option D is the correct answer.