Problem-Solving and Data AnalysisMediumTime for a shorter distance at the same speed
Problem-Solving and Data Analysis practice question
A car travels 150 kilometres in 2.5 hours at a steady speed. At the same speed, how many MINUTES does it take to travel 40 kilometres?
Answer: 40
Speed: 150/2.5 = 60 km per hour, which is 1 km per minute. So 40 km takes 40 minutes.
Common wrong answers
- If you answered 24
- 24 is 40 × 0.6, using 2.5/150 hours per km with a slip; at 60 km/h, 40 km is 40 minutes.
- If you answered 100
- 100 is 40 × 2.5, multiplying the distance by the given time.
- If you answered 0.67
- 0.67 is the time in HOURS (40/60); the question asks for minutes.
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