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From 10:00 PM to 11:00 PM, a person drove at 40 km/h and from 11:00 PM to 12 midnight at 50 km/h. What is his average speed in the time interval 10 PM to 12 AM? |
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Answer» From 10:00 PM to 11:00 PM, a person drove at 40 km/h and from 11:00 PM to 12 midnight at 50 km/h. What is his average speed in the time interval 10 PM to 12 AM? |
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