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You are provided three scales A, B, and C, as shown in the figure to measure a length of $10 cm$ , for the correct measurement of the length, which one of the scales you will use to measure the length?

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Only A

Only B

Only C

Any of the three scales

answer is D.

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Detailed Solution

Any of the three scales can measure the

10 cm

length, the scale should be at least

10 cm

long.
Let us check the length of interval available in the scale A,

A = 15 - 3

= 12 cm

The length of interval available in the scale B,

B = 15 - 3

= 12 cm

The length of interval available in the scale C,

C = 13 - 0

= 13 cm

As the available interval in every scale is more than

10 cm

. Thus, all the scales can easily measure

10 cm

correctly.

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