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Tanya Sachdeva
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Asked: 2020-11-03T10:12:34+00:00 In:

Yamini and Fatima, two students of Class IX of a school, together contributed Rs 100 towards the Prime Minister’s Relief Fund to help the earthquake victims. Write a linear equation which satisfies this data. (You may take their contributions as Rs x and Rs y.) Draw the graph of the same.

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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 4.3
Page No:75
Questions No:7

2020-2021cbsechapter 4class 9linear equations in two variablesmathematicsncert
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    1. Best Answer
      Yamini and Fatima, two students of Class IX of a school, together contributed Rs 100 towards the Prime Minister’s Relief Fund to help the earthquake victims. Write a linear equation which satisfies this data. (You may take their contributions as Rs x and Rs y.) Draw the graph of the same.

      Let the contribution by Yamini = ₹x
      Let the contribution by Fatima = ₹y
      According to question, x + y = 100
      ⇒ y = 100 – x
      For the graph:
      Putting x = 0, we have, y = 100 – 0 = 100
      Putting x = 10, we have, y = 100 – 10 = 90
      Putting x = 20, we have, y = 100 – 20 = 80
      Hence, A(0, 100), B(10, 90) and C(20, 80) are the solutions of equation.

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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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