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motorist traveling at a steady speed of 90 km/h covers a section of motorway in 25 minutes. After a speed limit is imposed he finds that, when traveling at the maximum speed allowed he takes 5 minutes longer than before to cover the same section. Calculate the speed limit.  ​

Respuesta :

mhanifa

Answer:

  • 75 km/h

Step-by-step explanation:

The distance covered by the motorist:

  • 90 k/h * 25 min =
  • 90 km/h * 25/60 h =
  • 37.5 km

Find the speed limit:

  • 37.5 km / (25 + 5) min =
  • 37.5 km / 30 min =
  • 37.5 km / 0.5 hr =
  • 75 km/h
Nepalieducation

Answer:

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