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primary 5 | Maths
| Rate & Ratio
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Date Posted: 4 years ago
Views: 253
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Average different = 810 - 720 = 90
When Jimmy is out of the group, the amount that spread to all other members = 1800 - 810 = 990
Therefore number of member in the group = 990 / 90 = 11
Jimmy have 11 friends in his group.
Hope this helps
When Jimmy is out of the group, the amount that spread to all other members = 1800 - 810 = 990
Therefore number of member in the group = 990 / 90 = 11
Jimmy have 11 friends in his group.
Hope this helps
Thank u.
Thank u.
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