Shawn's answer to Elly's Primary 6 Maths Ratio Singapore question.
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Originally 7u, after adding $60 it becomes 13u (5+8).
13u - 7u = 6u
6u = $60
1u = $10
They have 7u in total at first,
7u = $70
13u - 7u = 6u
6u = $60
1u = $10
They have 7u in total at first,
7u = $70
Date Posted:
4 years ago
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