Ex 4.1, 1 - Chapter 4 Class 9 Linear Equations in Two Variables

Last updated at Dec. 13, 2024 by

Ex 4.1, 1 - The cost of a notebook is twice cost of a pen - Equations of form ax + by + c = 0

 

 

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Ex 4.1, 1 The cost of a notebook is twice the cost of a pen. Write a linear equation in two variables to represent this statement. (Take the cost of a notebook to be Rs x and that of a pen to be Rs y.) Let the cost of a notebook be Rs x and the cost of pen be Rs y It is given that Cost of notebook = 2 Cost of pen x = 2y x 2y = 0 x 2y = 0 is the linear equation in two variables

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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 and Computer Science at Teachoo