We know that 1000 m = 1 km
∴1 m = 11000 km
2 km 35 m = 2 km + 35 m= 2 km + 1 m×35 = 2 km + 11000 km ×35 = 2.035 km
1 km 7 m = 1 km + 7 m= 1 km + 1 m×7 = 1 km + 11000 km ×7 = 1.007 km
Distance travelled in morning = 2 km 35 m = 2.035 km
Distance travelled in evening = 1 km 7 m = 1.007 km
HundredsTensOnes.TenthsHundredthsThousandths002.035001.007+003.042=3.042
Therefore, total distance travelled by Naresh
= 2.035 km + 1.007 km
= 3.042 km