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Question
primary 5 | Maths
| Rate & Ratio
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Ratios
Date Posted: 3 years ago
Views: 564
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Children to adult = 2:3
Boy: Girl = 5:3
Total Children ratio = 5+3
= 8
Children to adult = 2:3
= 8:12 (multiply by 4)
8 + 12 = 20 units
20 units -> 100 people
1 unit -> 100 / 5
= 20 people
Boy is 5 unit:
5 unit -> 5 x 5
= 25 boys //
Boy: Girl = 5:3
Total Children ratio = 5+3
= 8
Children to adult = 2:3
= 8:12 (multiply by 4)
8 + 12 = 20 units
20 units -> 100 people
1 unit -> 100 / 5
= 20 people
Boy is 5 unit:
5 unit -> 5 x 5
= 25 boys //
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