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primary 6 | Maths
| Algebra
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Date Posted: 4 years ago
Views: 613
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12 pens - > $a
1 pen -> $ a/12
18 pens -> $a/12 x 18
= $18a/12
= $ 3a/2
1 pen -> $ a/12
18 pens -> $a/12 x 18
= $18a/12
= $ 3a/2
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