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Yashvi Goyal
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Asked: 2020-11-06T03:27:28+00:00 In:

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).

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NCERT Solutions for Class 9 Maths Chapter 4
Important NCERT Questions
Linear equations in two variables
NCERT Books for Session 2022-2023
CBSE Board and UP Board Others state Board
EXERCISE 4.1
Page No:68
Questions No: 1

2020-2021cbsechapter 4class 9linear equations in two variablesmathematicsncert
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    2 Answers

    1. Best Answer

      Here, the cost of notebook = ₹x and the cost of pen = ₹y
      According to question, Cost of notebook = 2x Cost of Pen
      ⇒ x = 2y ⇒ RX-2y = 0

      Here is the video explanation of this Question😊

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    2. Get Hindi Medium and English Medium NCERT Solution for Class 9 Maths to download.
      Please follow the link to visit website for first and second term exams solutions.
      https://www.tiwariacademy.com/ncert-solutions/class-9/maths/chapter-4/

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