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Ex 8.4, 3 Raju bought a book for Rs 35.65. He gave Rs 50 to the shopkeeper. How much money did he get back from the shopkeeper? Cost of book = Rs 35.65 Amount given to shopkeeper = Rs 50 Money got back from shopkeeper = Rs 50 − Rs 35.65 = 50 − 3565/100 = 50 × 100/100 − 3565/100 = 𝟓𝟎𝟎𝟎/𝟏𝟎𝟎 − 𝟑𝟓𝟔𝟓/𝟏𝟎𝟎 = (5000 − 3565)/100 = 1435/100 = 14.35 ∴ Money got back from shopkeeper = Rs 14.35

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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.