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Mathematics, 31.05.2021 20:40 yolo123321

Justin and Ari go on a 30 km run. They usually run together at a speed of 10 km/h. If they start together but Justin runs at 12 his usual speed and Ari runs at 112 times her usual speed, how many hours after Ari finishes will Justin finish?

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Justin and Ari go on a 30 km run. They usually run together at a speed of 10 km/h. If they start tog...

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