Question 13 - Solving easy equations - Word Problems - Chapter 2 Class 8 Linear Equations in One Variable

Last updated at April 16, 2024 by

Ex 2.2, 13 - A rational number is such that when you multiply it by

Ex 2.2, 13 - Chapter 2 Class 8 Linear Equations in One Variable - Part 2

Transcript

Question 13 A rational number is such that when you multiply it by 5/2 and add 2/3 to the product, you get − 7/12. What is the number?Let x be the rational number Given that, If Multiply number by 5/2 and add 2/3 to product, we get – 7/12 Therefore, 5𝑥/2+2/3=(−7)/12 5𝑥/2=(−7)/12 −2/3 5𝑥/2=(−7 − 2 × 4)/12 5𝑥/2=(−7 − 8)/12 5𝑥/2=(−15)/12 𝑥 = (−15)/12×2/5 𝑥 = (−3)/6 𝑥=(−1)/2 ∴ The rational number is (−𝟏)/𝟐

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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.