Answer:
Distance travelled by Namita in a day\[=20\text{ km }50\text{ m}=20\text{ km}+50\text{ m}\] \[=20+\left( \frac{50}{1000} \right)\text{km}\] \[=(20+0.050)km\] Distance travelled by bus = 10 km 200 m \[=10\,\text{km+}\left( \frac{200}{1000} \right)\text{km}\] \[=10\,\text{km+0}\text{.200}\,\text{km}\] Distance travelled by auto = 20.050 km ? 10.200 km = 9.850 km = 9 km 850m.
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