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Venn Diagram

Venn Diagram. Rachel Wong Jing Wen (12) Class: 5/1. Purpose of using a Venn Diagra m. To replace models Easier to fill in the content Clearer to see. Things to observe when drawing Venn Diagram. Always draw your universe Always draw symbol Always label circles and diagrams . Symbol.

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Venn Diagram

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  1. Venn Diagram Rachel Wong Jing Wen (12) Class: 5/1

  2. Purpose of using a Venn Diagram • To replace models • Easier to fill in the content • Clearer to see

  3. Things to observe when drawing Venn Diagram • Always draw your universe • Always draw symbol • Always label circles and diagrams Symbol Universe

  4. Examples

  5. There are a total of 30 pupils in a class. 5 likes music only, 10 likes art only and 2 like both. How many like neither? 30-5-10-2 = 13 (30) Art(10) Music(5) Both(2) ? Ans: 13

  6. There are a total of 300 in a school in a school. 120 likes waffles, 150 like ice-cream and 65 like cookies. There are 50 girls who like all three food. The number of girls who like waffle and ice-cream only is 30. The number of girls who like ice-cream and cookie only is 5. The number of girls who like waffle and cookie only is 2. How many girls like only waffle, only ice-cream and only cookies respectively? Waffle (120) Ice-cream (150) Waffle: 120-30-50-2= 38 Ice-cream: 150-30-50-5=65 Cookies: 65-50-2-5=8 300 30 ? ? 50 5 2 ? Ans: Waffle: 38 Ice-cream: 65 Cookies: 8 cookies (65)

  7. There are 100 girls in a tuition center. 27 of them likes orange, 28 of them like pink and 30 of them likes purple. If 3 of them like all 3 colours, 5 like pink and purple only and 10 like only purple, how many pupils like only orange and purple? Orange (27) Pink(29) 30-10-5-3= 12 (100) 3 ? 5 10 Ans: 12 Purple(30)

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