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Ex 12.3, 8 - The weight of 72 books is 9 kg. What is weight of 40 book

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Ex 12.3, 8 The weight of 72 books is 9 kg. What is the weight of 40 such books?Weight of 72 books = 9 kg Weight of 1 books = (9/72) kg Weight of 40 books = (9/72) × 40 kg = (1/8) × 40 kg = 40/8 kg = 5 kg ∴ 40 such books will weight 5 kg

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.