Answer:
Naresh walked in morning = 2 km 35 m = 2 km + 35 m \[=3+\frac{2}{10}+\frac{5}{100}=3+0.2+0.05=3.25\] \[1\times 100+0\times 10+2\times 1+6\times \frac{1}{10}+3\times \frac{1}{100}+0\times \frac{1}{1000}\] \[=100+0+2+\frac{6}{10}+\frac{3}{100}+0=102+\frac{6}{10}+\frac{3}{100}\] Naresh walked in evening = 1 km 7 m = 1 km + 7 m \[=102+0.6+0.03=102.63\] \[0\times 100+3\times 10+0\times 1+0\times \frac{1}{10}+2\times \frac{1}{100}+5\times \frac{1}{1000}\] \[=0+30+0+0+\frac{2}{100}+\frac{5}{1000}\] \[=30+\frac{2}{100}+\frac{5}{1000}=30+0.02+0.005=30.025\] Total distance \[2\times 100+1\times 10+1\times 1+9\times \frac{1}{10}+0\times \frac{1}{100}+2\times \frac{1}{1000}\] Hence, total distance walked by Naresh is 3.042 km.
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