Last updated at March 6, 2017 by Teachoo

Transcript

Example 14 : At a Ramzan Mela, a stall keeper in one of the food stalls has a large cylindrical vessel of base radius 15 cm filled up to a height of 32 cm with orange juice. The juice is filled in small cylindrical glasses (see Fig. ) of radius 3 cm up to a height of 8 cm, and sold for Rs 3 each. How much money does the stall keeper receive by selling the juice completely? Number of glasses sold = (๐๐๐๐ข๐๐ ๐๐ ๐๐ข๐๐๐ ๐๐ ๐ฃ๐๐ ๐ ๐๐)/(๐๐๐๐ข๐๐ ๐๐ ๐๐ข๐๐๐ ๐๐ 1 ๐๐๐๐ ๐ ) Volume of juice in vessel Juice in vessel is in form of cylinder with Radius = 15 cm Height = 32 cm Volume of juice in the vessel = ฯr2h = ฯ ร 15 ร 15 ร 32 cm3 Volume of juice in 1 glass Juice in glass is in form of cylinder with Radius = 3 cm Height = 8 cm Volume of juice in the vessel = ฯr2h = ฯ ร 3 ร 3 ร 8 cm3 Number of glasses sold = (๐๐๐๐ข๐๐ ๐๐ ๐๐ข๐๐๐ ๐๐ ๐ฃ๐๐ ๐ ๐๐)/(๐๐๐๐ข๐๐ ๐๐ ๐๐ข๐๐๐ ๐๐ 1 ๐๐๐๐ ๐ ) = "ฯ ร 15 ร 15 ร 32" /"ฯ ร 3 ร 3 ร 8" = 5 ร 5 ร 4 = 100 Money received by selling 1 glass = Rs 3 Money received by selling 100 glass = Rs 3 ร 100 = Rs 300 Therefore, stall keeper receives Rs 300 by selling the juice completely

Example 2
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Example 6 Important

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Example 14 Important You are here

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Example 18 Important

Ex 13.8, 4 Important

Surface Area and Volume Formulas Important

Class 9

Important Questions for Exam - Class 9

- Chapter 1 Class 9 Number Systems
- Chapter 2 Class 9 Polynomials
- Chapter 3 Class 9 Coordinate Geometry
- Chapter 4 Class 9 Linear Equations in Two Variables
- Chapter 5 Class 9 Introduction to Euclid's Geometry
- Chapter 6 Class 9 Lines and Angles
- Chapter 7 Class 9 Triangles
- Chapter 8 Class 9 Quadrilaterals
- Chapter 9 Class 9 Areas of parallelograms and Triangles
- Chapter 10 Class 9 Circles
- Chapter 11 Class 9 Constructions
- Chapter 12 Class 9 Herons Formula
- Chapter 13 Class 9 Surface Areas and Volumes
- Chapter 14 Class 9 Statistics
- Chapter 15 Class 9 Probability

About the Author

CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .