A wooden bookshelf has external dimensions as follows: Height =110
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Click here👆to get an answer to your question ✍️ A wooden bookshelf has external dimensions as follows- Height -110 cm- Depth - 25 cm- Breadth - 85 cm- The thickness of the plank is 5 cm everywhere- The external faces are to be polished and the inner faces are to be painted- If the rate of polishing is 20 paise per -cm-2- and the rate of painting is 10 paise per -cm-2- Find the total expenses required polishing and painting the surface of the bookshelfRs 6275Rs 4340Rs 2525Rs 1935
External length -l- of bookshelf-85-x339D-External breadth -b- of bookshelf-25-x339D-External height -h- of bookshelf-110-x339D-External surface area of book shelf while leaving out the front face of the shelf-lh-2-lb-bh-85-xD7-110-2-85-xD7-25-25-xD7-110-9350-9750-19100-x33A0-Area if front face-85-xD7-110-x2212-75-xD7-100-2-75-xD7-5-1850-760-2600-x33A0-Area to be polished-19100-2600-21700-x33A0-Cost of polishing-Rs- 21700-xD7-0-20-Rs-4340Length- breadth and height of each row of bookshelf are 75-x339D-20-x339D- -amp- 30-x339D- respectively- From the figure Area to be painted in 1 row-2-l-h-b-lh-2-75-30-20-75-xD7-30-6450-x33A0-Area to be painted in 3 rows-3-xD7-6450-19350-x33A0-Total cost of painting-Rs-19350-xD7-0-1-Rs- 1935Total expenses-Rs-4340-1935-Rs- 6275
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Question 1 - A wooden bookshelf has dimensions: Height=110
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A wooden bookshelf has external dimensions as follows: Height
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x ^ { prime } ) 1. A wooden bookshelf bas external dimensions as
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A wooden bookshelf has external dimensions as follows: Height
![](https://hi-static.z-dn.net/files/dc7/a18cdd87c8ba575b3cd09e8487c9f7ed.jpg)
A wooden bookshelf has external dimensions asfollows: Height = 110
![](https://i.ytimg.com/vi/Tdp_SY0JrNo/maxresdefault.jpg)
A wooden bookshelf has external dimensions as follows: Height
A wooden bookshelf has external dimensions as follows: Height
![](https://images.collegedunia.com/public/image/e2dc4b798a35c4a9242ccd143e99a9e2.jpeg?tr=w-800,h-1035,c-force)
NCERT Solutions for Class 9 Maths Chapter 13 : Surface Areas And
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Class 9 NCERT Solutions- Chapter 13 Surface Areas And Volumes
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ExERCISE 13.9 (Optioual) Tollows: Height ( = 110 mathrm { cm
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A wooden bookshelf has external dimensions as follows:height=110
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Aluminium rack (pluggable): Mohn GmbH
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A wooden bookshelf has external dimensions as follows: Height