[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-detail-207716-en":3,"doc-seo-207716-105":29,"detail-sidebar-cat-0-en-105":81},{"code":4,"msg":5,"data":6},0,"success",{"doc_id":7,"user_id":8,"nickname":9,"user_avatar":10,"doc_module":4,"category_id":11,"category_name":12,"doc_title":13,"doc_description":14,"doc_content":15,"file_id":16,"file_url":17,"file_type":18,"file_size":19,"view_count":4,"is_deleted":4,"is_public":20,"is_downloadable":20,"audit_status":20,"page_count":11,"language":21,"language_code":22,"site_id":23,"html_lang":22,"table_of_contents":24,"faqs":25,"seo_title":26,"seo_description":14,"update_tm":27,"read_time":28},207716,8814010472675,"Xiajie","https://avatar.qwps.com/avatar/WGlhamll",4,"Exam","AQA GCSE Maths - Exchange Rates & Best Buys - Revision Notes","Revision notes for AQA GCSE Maths covering two practical topics: exchange rates and best value buys. Explains how to simplify exchange rate conversion by putting rates into ratio form, adding lines for prices, using scale factors, and selecting the final answer with appropriate rounding. Then explains how to compare deals by calculating the cost of 1 item from each offer, using clear working, and choosing the cheaper per-item price to determine which shop provides better value for money.","Head to www.savemyexams. com for more awesome resources  \n AQA GCSE Maths  \nExchange Rates & Best Buys  \nContents  \n Exchange Rates & Best Buys  \nPage 1 of 4  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \nExchange Rates & Best Buys  \nExchange Rates  \nExchange rates are used when comparing and converting between diyerent currencies. A good understanding of ratio and proportion is helpful for exchange rate conversion questions.  \nHow do I simplify exchange rate questions?  \n Using ratios is one of the easiest ways to compare, convert and simplify exchange rates  \n STEP 1  \nPut exchange rates in ratio form (use more than one line if necessary)  \n STEP 2  \nAdd lines for prices/costs  \n STEP 3  \nUse scale factors to complete lines  \n STEP 4  \nPick out the answer  \nPage 2 of 4  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \n Worked example  \n€1 (1 Euro) is worth $19 .51 (Mexican Pesos) .  \n₿1 (1 Bitcoin) is worth €20004 .96 (Euro) .  \nA vintage car costs $1000000 (Mexican Pesos) .  \nWhat is the cost of the car in Bitcoin?  \nConvert $1000000 Mexican Peso to Euros.  \nPut the exchange rates in ratio form.  \nEuro : Mexican Peso = 1 : 19.51  \nAdd a line for each rate.  \nEuro : Mexican Peso  \nConvert $1000000 Mexican Peso to Euros by dividing 1000000 by 19 .51.  \n1000000 ÷ 19 .51 = 51255.7662    \nSo $1000000 Mexican Peso = €51255 .7662... Euro.  \nConvert €51255 .7662... Euro to Bitcoin.  \nPut the exchange rates in ratio form.  \nBitcoin : Euro = 1 : 20004.96  \nAdd a line for each rate.  \nBitcoin : Euro  \nConvert €51255 .7662. .. Euro to Bitcoin by dividing 51255 .7662. .. by 20004 .96.  \n51255.7662... ÷ 20004 .96 = 2.56215... Bitcoin  \nRound to a suitable degree of accuracy.  \n₿2 .56 Bitcoin  \nPage 3 of 4  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers  \nYour notes  \nHead to www.savemyexams. com for more awesome resources  \nBest Buys  \nYou need to be able to determine, with clear reasoning, which deal being oyered by shops is the best value for money.  \nHow do I workout which deal is best?  \n Find the price of 1 item (by dividing the number of items and total price by the same scale factor)  \n e. g. if 3 tins cost £1 .20 then 1 tin costs 40p (by dividing both quantities by 3)  \n Compare the prices of 1 item from each shop / deal to see which is cheaper  \n The cheaper deal is the better value for money  \n e. g. 1 tin costs 40p from shop A and 45p from shop B  \n 1 tin at shop A is cheaper than at shop B  \n therefore shop A is the better value for money  \n For more complicated deals, write down each line of working clearly  \n Worked example  \nTwo deals for buying caps are given below:  \n3 caps for £22 .50 from Baseball World  \n5 caps for £36 from Head Hut  \nAt which shop are the caps better value?  \nYou must show your working.  \nFind the cost of 1 cap from Baseball World (by dividing £22 .50 by 3)  \n22.50 ÷ 3 = £7 .50 for 1 cap from Baseball World  \nFind the cost of 1 cap from Head Hut (by dividing 36 by 5)  \n36 ÷ 5 = £7 .20 for 1 cap from Head Hut  \nCompare the price of 1 cap from each shop to see which is cheapest  \n£7 .20 is cheaper than £7 .50  \nWrite down, with reason, the shop with better value  \n1 cap from Head Hut costs £7.20 and 1 cap from Baseball World costs £7.50 £7.20 is cheaper than £7.50 so Head Hut is better value  \nYour notes  \nPage 4 of 4  \n© 2015 − 2025 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers","cbCaiew9VQcFeJGk","https://ap.wps.com/l/cbCaiew9VQcFeJGk","pdf",289392,1,"English","en",105,"# Exchange Rates & Best Buys\n## Exchange Rates\n## How do I simplify exchange rate questions?\n## Worked example\n## Best Buys\n## How do I workout which deal is best?","[{\"question\":\"How can I determine which shop has the best value for money?\",\"answer\":\"Find the cost of 1 item for each deal by dividing the total price by the number of items (using the same scaling idea). Compare the per-item costs and choose the lower price, showing clear working.\"}]","AQA GCSE Maths - Exchange Rates & Best Buys - Revision Notes | PDF",1788600732,10,{"code":4,"msg":30,"data":31},"ok",{"site_id":23,"language":22,"slug":32,"title":13,"keywords":33,"description":14,"schema_data":34,"social_meta":76,"head_meta":78,"extra_data":80,"updated_unix":27},"aqa-gcse-maths-exchange-rates-best-buys-revision-notes","",{"@graph":35,"@context":75},[36,52,66],{"@type":37,"itemListElement":38},"BreadcrumbList",[39,43,47,50],{"item":40,"name":41,"@type":42,"position":20},"https://docshare.wps.com","Home","ListItem",{"item":44,"name":45,"@type":42,"position":46},"https://docshare.wps.com/document/","Document",2,{"item":48,"name":12,"@type":42,"position":49},"https://docshare.wps.com/document/exam/",3,{"item":51,"name":13,"@type":42,"position":11},"https://docshare.wps.com/document/aqa-gcse-maths-exchange-rates-best-buys-revision-notes/207716/",{"url":51,"name":13,"@type":53,"author":54,"headline":13,"publisher":56,"fileFormat":59,"inLanguage":22,"description":14,"dateModified":60,"datePublished":60,"encodingFormat":59,"isAccessibleForFree":61,"interactionStatistic":62},"DigitalDocument",{"name":9,"@type":55},"Person",{"url":40,"name":57,"@type":58},"DocShare","Organization","application/pdf","2026-09-05",true,{"@type":63,"interactionType":64,"userInteractionCount":4},"InteractionCounter",{"@type":65},"ViewAction",{"@type":67,"mainEntity":68},"FAQPage",[69],{"name":70,"@type":71,"acceptedAnswer":72},"How can I determine which shop has the best value for money?","Question",{"text":73,"@type":74},"Find the cost of 1 item for each deal by dividing the total price by the number of items (using the same scaling idea). 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