While measuring the length of a pencil, the reading of the scale at one end is $3.0 c m$ and at the other end is $50.1 c m$ . What is the length of the pencil?

53.1 cm

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47.1 cm

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49.8 cm

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50.1 cm

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Solution

The correct option is D. $47.1 c m$
Length of the pencil $=$ Final Measurement $-$ Initial Measurement
$= 50.1 - 3.0$
$= 47.1 c m$

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