Rishi measured a string with the scale he has in his pencil box and found out that it was 225 cm long. What is the length in meters?

0.225 m

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22.5 m

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2.25 m

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225 m

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Solution

The correct option is B $2.25 m$
$∵ 100 c m = 1 m ∴ 1 c m = \frac{1}{100} m \Rightarrow 225 c m = 225 \times \frac{1}{100} m = 2.25 m$

So, the length of the string in meters is 2.25.

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