We take a one-meter rod and mark 4 points on it such that each segment is of equal length.

What is the length of the line segment OA?

2 m

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2000 mm

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20 cm

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2 cm

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Solution

The correct option is C
20 cm

OE = 1 m = 100 cm (Given it is a metre scale)
Since the metre scale is divided into 5 equal parts, each part is equal to one fifth of OE.

Hence, $O A = \frac{1}{5} \times O E$
$\Rightarrow O A = \frac{100}{5} = 20 c m$

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