Ratio And Proportion
Gbogbo ọrọ náà
From mixing paint colours to sharing prize money, ratios describe how quantities compare to each other. Proportion extends that idea to situations where one quantity scales up or down in step with another. Together, they form a topic that appears across almost every Edexcel paper.
You will learn to simplify ratios, divide quantities in a given ratio, recognise direct proportion and solve a wide range of word problems, all while building the algebraic reasoning that connects ratio work to fractions and percentages.
Ebumnobi
- Use ratio notation, including reduction to its simplest form and its various links to fraction notation
- Divide a quantity in a given ratio or ratios
- Use the process of proportionality to evaluate unknown quantities
- Calculate an unknown quantity from quantities that vary in direct proportion
- Solve word problems about ratio and proportion
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Kaadị ncheta
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Akwụkwọ Ọmụmụ
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Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Ratio And Proportion. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Simplify the ratio 36 : 48. A) 4 : 3 B) 3 : 4 C) 6 : 8 D) 9 : 12 Answer: B
- Divide 200 in the ratio 3 : 2. What is the larger share? A) 80 B) 100 C) 120 D) 150 Answer: C
- If 6 books cost 42, what do 10 books cost? A) 60 B) 70 C) 48 D) 84 Answer: B
- The ratio of cats to dogs is 2 : 5. What fraction are cats? A) 2/5 B) 5/7 C) 2/7 D) 5/2 Answer: C
- A map has a scale 1 : 50 000. What real distance does 3 cm represent? A) 150 m B) 1.5 km C) 15 km D) 150 km Answer: B
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Akụkụ akwụkwọ
Ratios and Rate
Write a ratio as a fraction
"Prealgebra: Ratios and Rate" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/prealgebra/pages/5-6-ratios-and-rate. Access for free at https://openstax.org/books/prealgebra/pages/1-introduction
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Akụkụ akwụkwọ
Modeling Using Variation
Solve direct variation problems.
"Algebra and Trigonometry: Modeling Using Variation" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/algebra-and-trigonometry/pages/5-8-modeling-using-variation. Access for free at https://openstax.org/books/algebra-and-trigonometry/pages/1-introduction
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Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Ratio And Proportion? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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