Question

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.  ​

Answer 1

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

Answer 2

Answer:

Hope it will help you a lot.