Failure

Drivers of passenger cars have calculated that at a speed of 60 km/h arrives at destination within 40 minutes. After 20 km refrain five minutes due a technical failure. How fast must go the rest of the way to the finish came at the scheduled time?

Result

v2 =  80 km/h

Solution:

Solution in text v2 =







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To solve this example are needed these knowledge from mathematics:

Do you want to convert length units?

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