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Question
primary 6 | Maths
| Ratio
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Age question
Date Posted: 5 years ago
Views: 308
Ratio now : 2 : 5
Difference = 3 units
Ratio 14 years later = 5 : 9
Difference = 4 units
The difference in their ages will always be the same. So we should make the units the same.
2 : 5 → 8 : 20
Difference = 12 units
5 : 9 → 15 : 27
Difference = 12 units
27 - 20 = 7
15 - 8 = 7
So there is an increase of age of 7 units.
7 units = 14 years
1 unit = 2 years.
Use this to find Siti's age now and then the required answer (not sure 5 or 6 years ago as the picture is not very clear)
Difference = 3 units
Ratio 14 years later = 5 : 9
Difference = 4 units
The difference in their ages will always be the same. So we should make the units the same.
2 : 5 → 8 : 20
Difference = 12 units
5 : 9 → 15 : 27
Difference = 12 units
27 - 20 = 7
15 - 8 = 7
So there is an increase of age of 7 units.
7 units = 14 years
1 unit = 2 years.
Use this to find Siti's age now and then the required answer (not sure 5 or 6 years ago as the picture is not very clear)
See 1 Answer
done
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clear
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Hope this helps
Date Posted:
5 years ago
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