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Slide12.JPG

  1. Chapter 13 Class 8 Direct and Inverse Proportions
  2. Serial order wise

Transcript

Ex 13.1, 4 A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours? Given, 840 bottles are filled in 6 hours. Let x bottles be filled in 5 hours. Thus, our table looks like As number of bottles increases, the time taken to fill the bottles also increases. ∴ Number of bottles and time are in direct proportion. 840/6 = 𝑥/5 840/6 × 5 = 𝑥 140 × 5 = 𝑥 700 = 𝑥 𝑥 = 700 ∴ 700 bottles are filled in 5 hours

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.