NCERT - 8 - Maths :: Comparing Quantities
Go To: NCERT-Mathematics-Grade 8
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[Author - Kripa S]
Objective: To revise ratio, percentage and their applications
Subtopics to be covered:
- Ratio, Percentage and their conversion
- Profit, Loss, Discount
- Tax
- Compound Interest
Learning Outcome:
- Students can convert ratio to percentage and solve sums
- Students can solve problems based on percentage (example - Profit, Loss, Discount, SP, CP)
[Author - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0853-Ganit/Chapter_8/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/ClassVIIIFlipbook/0852-Mathematics/8/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-bEx6YVBSZUlkOU0 (JEPC Board) (Hindi Medium)
[Contributor - Rishi Mazumdar]
(Source - Khan Academy)
https://hi.khanacademy.org/math/in-math-by-grade/in-seventh-grade-math/in-seventh-grade-math/comparing-quantities (Hindi - Comparing Quantities)
[Author - Kripa S]
http://study.com/cimages/videopreview/4qfs3doxw6.jpg (what is ratio)
http://www.edpax.com/media/managed/large/ratio_proportion_2nd_41.png (ratio example 1)
http://www.rpdp.net/mathdictionary/english/vmd/images/e/equivalentratios.gif (ratio example 2)
https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTHyX4m1veFeiPuZymoJGrmR8_G1Hi8qZKBzfUE66geuwYD0ry0 (proportion example 1)
https://image.pbs.org/poster_images/assets/PROPORTION.jpg.resize.710x399.jpg (proportion example 2)
https://www.mathsisfun.com/algebra/images/proportion-1a.gif (proportion with numbers)
http://images.tutorvista.com/cms/images/113/equivalent-ratios.png (equivalent ratio)
https://qrfellows.files.wordpress.com/2013/11/139202.jpg (percentage in daily use)
https://media.gcflearnfree.org/ctassets/topics/231/half-measuring-cup3.png (conversion of fraction to percentage)
[Contributor - Shiyamali. S]
https://drive.google.com/open?id=0BzNF2YyqQxJ-WE1yNkNLX2xsbzg (Activity 1)
https://drive.google.com/open?id=0BzNF2YyqQxJ-LTRRV3Fmd2FDMmM (Activity 2)
[Contributor - Shreya Sood]
https://drive.google.com/open?id=1ZJQ4Xb-uaBmCvmIY_61XLXPsi_mHbhNr
| Term' | 'Transliterated Term' | 'Translated Term' |
| amounts | अमाउंटस | राशियाँ |
| compare | कॉम्पएयर | तुलना |
| Ratio | रेश्यो | अनुपात |
| percentage | परसेंटेज | प्रतिशत |
| discount | डिस्काउंट | बट्टा |
| estimation | एस्टीमेशन | आकलन |
| loss | लोस | हानि |
| profit | प्रॉफिट | लाभ |
| buy | बाई | खरीद |
| sell | सेल | बिक्री |
| cost price | कॉस्ट प्राइस | क्रय मुल्य |
| sell price | सेल प्राइस | विक्रय मुल्य |
| rate | रेट | दर |
| value | वैल्यू | मुल्य |
| compound interest | कंपाउंड इंटरस्ट | चक्रवृद्धि ब्याज |
| simple interest | सिंपल इंटरस्ट | साधारण ब्याज |
| rate of interest | रेट ऑफ इंटरस्ट | वार्षिक ब्याज |
| half yearly | हाफ इयरली | अर्धवार्षिक |
| formula | फ़ॉर्मूला | सूत्र |
[Contributor - Akash Garg]
https://drive.google.com/open?id=1p0GyHNwgrMYUhiReDdKVVwDXiJUxLeA2
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