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Question
primary 6 | Maths
| Data Analysis
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Date Posted: 5 years ago
Views: 444
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How u get 1 unit =5?
3 units (Sally's age now) - 2 units (Sally' age 5 years ago) = 1 unit OR
5 units (Ming Li's age now) - 4 units (Ming Li's age 5 years ago) = 1 unit
5 units (Ming Li's age now) - 4 units (Ming Li's age 5 years ago) = 1 unit
Tqvm
done
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If Sally's old age is x, then Mig Li's old age is 2 times x = 2x.
Then, Sally's present age is 2x while Ming Li's present age is 2x + 5.
Then, Sally's present age is 2x while Ming Li's present age is 2x + 5.
Date Posted:
5 years ago
Tqvm
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