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RD Sharma - Mathematics

9. Linear Equation in One Variable

1. Rational Numbers
2. Powers
3. Squares and Square Roots
4. Cubes and Cube Roots
5. Playing with Numbers
6. Algebraic Expressions and Identities
7. Factorization
8. Division of Algebraic Expressions
9. Linear Equation in One Variable
10. Direct and Inverse Variable
11. Time and Work
12. Percentage
13. Profit, Loss, Discount and Value Added Tax (VAT)
Compound Interest
15. Understanding Shapes-I (Polygons)
16. Understanding Shapes-II (Quadrilaterals)
17. Understanding Shapes-III (Special Types of Quadrilaterales)
18. Practical Geometry (Constructions)
19. Visualising Shapes
20. Mensuration-I (Area of a Trapezium and a Polygon)
21. Mensuration-II (Volumes and Surface Areas of a Cuboid and a Cube)
22. Mensuration-III (Surface Area and Volume of a Right Circular Cylinder
23. Data Handling-I (Classification Representation of Data as Histograms)
24. Data Handling-II (Graphical Representation of Data as Pie Charts
25. Data Handling-III (Pictorial Representation of Data as Pie Charts
26. Data Handling-IV (Probability)
27. Introduction to Graphs

Exercise 9.1

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Exercise 9.2

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Exercise 9.3

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Exercise 9.4

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Q. 94.4( 27 Votes )

A sum of Rs 800 i

Class 8th RD Sharma - Mathematics 9. Linear Equation in One Variable

Answer :

Let the number of notes of Rs 10 are

Number of notes of Rs 20 are

Amount due to Rs 10 notes =

Amount due to Rs 20 notes =

According to the question total amount = Rs 800

Therefore the number of notes of Rs 10 are

Number of notes of Rs 20 are

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