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primary 6 | Maths
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Date Posted: 5 years ago
Views: 271
69 paper + 36 plastic = 105 bookmarks
at first.
Number of plastic bookmarks didn't change.
If 36 plastic bookmarks is now 20%,
36 → 20%
100% → 36 × 5 = 180 bookmarks
She now has 180 bookmarks.
180 - 105 = 75
Her father gave her 75 bookmarks.
at first.
Number of plastic bookmarks didn't change.
If 36 plastic bookmarks is now 20%,
36 → 20%
100% → 36 × 5 = 180 bookmarks
She now has 180 bookmarks.
180 - 105 = 75
Her father gave her 75 bookmarks.
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