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Ex 7.1, 5 - Chapter 7 Class 8 Comparing Quantities

Last updated at May 29, 2023 by

Ex 8.1, 5 - If Chameli had Rs 600 left after spending 75% of her money

Ex 8.1, 5 - Chapter 8 Class 8 Comparing Quantities - Part 2
Ex 8.1, 5 - Chapter 8 Class 8 Comparing Quantities - Part 3 Ex 8.1, 5 - Chapter 8 Class 8 Comparing Quantities - Part 4

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Ex 7.1, 5 (Method 1) If Chameli had Rs 600 left after spending 75% of her money, how much did she have in the beginning? Given, ∴ Percentage of Money spent = 75% ∴ Percentage of Money left = 100% − Percentage of money spent = 100 − 75 = 25% Let Total Money = x Given that Money left = Rs 600 ∴ Percentage of money left = (𝑀𝑜𝑛𝑒𝑦 𝐿𝑒𝑓𝑡)/(𝑇𝑜𝑡𝑎𝑙 𝑀𝑜𝑛𝑒𝑦) × 100 25 = 600/𝑥×100 x = 600/25 × 100 x = 600 × 100/25 x = 600 × 4 x = 2400 ∴ Total Money = x = Rs 2400 Ex 7.1, 5 (Method 2) If Chameli had Rs 600 left after spending 75% of her money, how much did she have in the beginning? Given, ∴ Percentage of Money spent = 75% ∴ Percentage of Money left = 100% − Percentage of money spent = 100 − 75 = 25% Money left = Total Money × Percentage of Money left 600 = Total Money × 25% 600 = Total Money × 25/100 600 × 100/25 = Total Money Total Money = 600 × 100/25 Total Money = 600 × 4 Total Money = Rs 2400

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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.