Add 20 kilometres and 300 metres.

320 km

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20.3 km

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23 km

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2.03 km

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Solution

The correct option is B
20.3 km

We need to convert 300 m to km. To convert a smaller unit (m) to a bigger unit (km), we need to divide by the conversion factor.

We know that 1000 m = 1 km

$∴$ 300 m = $\frac{300}{1000}$ = 0.300 km.

Hence, 20 km + 0.300 km = 20.300 km = 20.3 km

Suggest Corrections

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