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Ex 8.3, 4 Nasreen bought 3 m 20 cm cloth for her shirt and 2 m 5 cm cloth for her trouser. Find the total length of cloth bought by her.Length of shirt = 3 m 20 cm Length of trouser = 2 m 5 cm Total length = Length of shirt + Length of trouser = 3 m 20 cm + 2 m 5 cm = (3 m + 20 cm) + (2 m + 5 cm) = (3 m + 2 m) + (20 cm + 5 cm) = 5 m + 25 cm = 5 m 25 cm Converting to decimals = 5 m + 25 cm = 5 m + 25 × 1 cm = 5 m + 25 × 1/100 m = 5 m + 25/100 m = (𝟓+ 𝟐𝟓/𝟏𝟎𝟎) m = ((5 × 100 + 25)/100) m = (500 + 25)/100 m = 525/100 m = 5.25 cm ∴ Total length = 5.25 m

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.