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Rd sharma solutions

CHAPTERS

6. Algebraic Expressions and Identities

8. Division of Algebraic Expressions

9. Linear Equation in One Variable

10. Direct and Inverse Variations

13. Profit Loss Discount and Value Added Tax

15. Understanding Shapes Polygons

16. Understanding Shapes Quadrilaterals

17. Understanding Shapes Special Types Quadrilaterals

20. Area of Trapezium and Polygon

21. Volume Surface Area Cuboid Cube

22. Surface Area and Volume of Right Circular Cylinder

23. Classification And Tabulation Of Data

24. Classification And Tabulation Of Data Graphical Representation Of Data As Histograms

25. Pictorial Representation Of Data As Pie Charts Or Circle Graphs

A cricketer hit 120 runs in 150 balls during a test match. 20% of the runs came

in 6’s, 30% in 4’s, 25% in 2’s and the rest in 1’s. How many runs did he score in

(i)6’s

(ii)4’s

(iii)2’s

(iv)singles

What % of his shots were scoring ones?

The given details are,

Total number of runs scored by cricketer = 120

(i)20% of Runs scored in 6’s = (20/100) × 120 = 24 runs

(ii)30% of Runs scored in 4’s = (30/100) × 120 = 36 runs

(iii)25% of Runs scored in 2’s = (25/100) × 120 = 30 runs

(iv)Runs scored in singles = 120 – (24+36+30)

= 120 – 90 = 30 runs

Percentage of shots scoring ones = (Runs came in singles/Total runs scored) × 100

= (30/120) × 100

= 25%

Algebraic Expressions and Identities

Division of Algebraic Expressions

Linear Equation in One Variable

Profit Loss Discount and Value Added Tax

Understanding Shapes Quadrilaterals

Understanding Shapes Special Types Quadrilaterals

Volume Surface Area Cuboid Cube

Surface Area and Volume of Right Circular Cylinder

Classification And Tabulation Of Data

Classification And Tabulation Of Data Graphical Representation Of Data As Histograms

Pictorial Representation Of Data As Pie Charts Or Circle Graphs

A cricketer hit 120 runs in 150 balls during a test match. 20% of the runs came

in 6’s, 30% in 4’s, 25% in 2’s and the rest in 1’s. How many runs did he score in

(i)6’s

(ii)4’s

(iii)2’s

(iv)singles

What % of his shots were scoring ones?

The given details are,

Total number of runs scored by cricketer = 120

(i)20% of Runs scored in 6’s = (20/100) × 120 = 24 runs

(ii)30% of Runs scored in 4’s = (30/100) × 120 = 36 runs

(iii)25% of Runs scored in 2’s = (25/100) × 120 = 30 runs

(iv)Runs scored in singles = 120 – (24+36+30)

= 120 – 90 = 30 runs

Percentage of shots scoring ones = (Runs came in singles/Total runs scored) × 100

= (30/120) × 100

= 25%

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