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Ex 8.4, 7 Aakash bought vegetables weighing 10 kg. Out of this, 3 kg 500 g is onions, 2 kg 75 g is tomatoes and the rest is potatoes. What is the weight of the potatoes?Total weight = 10 kg Weight of Onion = 3 kg 500 g Weight of tomatoes = 2 kg 75 g Weight of Potatoes = ? Now, Total weight = Weight of onion + Weight of tomatoes + Weight of potatoes 10 kg = 3 kg 500 g + 2 kg 75 g + Weight of potatoes 10 kg = (3 kg 500 g) + (2 kg 75 g) + Weight of potatoes 10 kg = 5 kg + 575 g = Weight of potatoes 10 kg – 5 kg – 575 g = Weight of potatoes Weight of potatoes = 5 kg – 575 g Weight of potatoes = 5 kg – 575 × 1g Weight of potatoes = 5 – 575/1000 kg Weight of potatoes = 5 × 1000/1000 – 575/1000 kg = ((𝟓𝟎𝟎𝟎 −𝟓𝟕𝟓))/𝟏𝟎𝟎𝟎 kg = 4425/1000 kg = 4.425 kg

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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 and Computer Science at Teachoo