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primary 6 | Maths
| Measurement
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Date Posted: 4 years ago
Views: 463
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Kim + Derrick = 3 hrs per person per room
So if they paint 2 rooms, total time = 6 hrs per person = 12 hrs for 2 of them
For one room, Kim = 8 hrs
Therefore, Derrick = 12 - 8 = 4 hrs
So if they paint 2 rooms, total time = 6 hrs per person = 12 hrs for 2 of them
For one room, Kim = 8 hrs
Therefore, Derrick = 12 - 8 = 4 hrs
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