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primary 6 | Maths
| Speed
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Date Posted: 6 years ago
Views: 417
Hm. Kelly jogs at 1m/s while the guy cycles at 5m/s. Meaning with every second that passes, the guy will catch up 4m. In total, this guy needs to catch up 90m. So. 90/4= 22.5. He will have to ride for 22.5sec.
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