Ex 8.3, 5 Naresh walked 2 km 35 m in the morning and 1 km 7 m in the evening. How much distance did he walk in all?Distance walked in morning = 2 km 35 m Distance walked in morning = 1 km 7 m Total distance walked = Distance walked in morning + Distance walked in evening = 2 km 35 m + 1 km 7 m = (2 km + 35 m) + (1 km + 7 m) = (2 km + 1 km) + (35 m + 7 m) = 3 km + 42 m = 3 km 42 m Converting to decimals = 3 km + 42 m = 3 km + 42 × 1/1000 km = 3 km + 42/1000 km = (3+42/1000 " " ) km = ((3 × 1000 + 42)/1000 " " ) km = ((3000 + 42)/1000) km = 3042/1000 km = 3.042 km ∴ Total distance walked = 3.042 km

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.

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