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Ratios and proportions

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This section explores the calculation of ratios and proportions using practical situations involving boys and girls in a class, fruits in a basket, and distance representation on a map. It includes exercises to find ratios such as boys to girls, oranges to grapes, and the scale conversion from miles to inches. Gain a clear understanding of how to express relationships within groups and apply this knowledge to real-life scenarios.

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Ratios and proportions

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  1. Ratios and proportions Section 7.0

  2. There are 6 boys and 3 girls in a class. • Find the ratio of: • Boys to girls • Girls to boys • Boys to children • Children to girls • There are 8 oranges, 9 grapes and 3 carrots in a basket. • Find the ratio of: • Orange to grapes • Carrots to grapes • Grapes to total • Total to carrots

  3. Find the ratio of large to small. a. b. c. 8.4 6.2 9.86 4.2 6.12 12.24

  4. A scale on a map states that 5 miles = 2 inches. You live 8 miles from your friend’s house. How far is that on the map in inches?

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