Math Problem Statement
A truck left Pretoria at 09:00 and travelled to Benoni at a speed of 50km/h throughout the whole journey. A car left Benoni at 09:30 and travelled to Pretoria. The speed of the car remained the same until it passed the lorry at 12:00. The truck has travelled 3 7 of the journey when it passed the car. The speed of the car decreased by 5km/h after it passed the truck and it travelled at this new speed for the rest of the journey.
- Find the distance between pretoria and benoni
Solution
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear equations
Proportions
Rates and Distance
Formulas
Distance = Speed × Time
Proportion of distance: (3/7) × total distance
Theorems
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Suitable Grade Level
Grades 9-12
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