Speed, Distance & Time
Speed, distance and time problems help us calculate how fast something is moving, how far it travels, or how long it takes. These calculations are common in 11+ exams and essential for understanding travel in real life.
📐 The Key Formulas:
Speed
Distance ÷ Time
Distance
Speed × Time
Time
Distance ÷ Speed
Examples:
-
1. Finding Speed: A car travels 120 km in 2 hours.
Calculation: 120 ÷ 2 = 60 km/h -
2. Finding Distance: A cyclist travels at 15 km/h for 3 hours.
Calculation: 15 × 3 = 45 km -
3. Finding Time: A train travels 180 km at 60 km/h.
Calculation: 180 ÷ 60 = 3 hours
Tips:
- Check consistency: If speed is in km/h, time must be in hours.
- Draw a "Formula Triangle" (Distance at the top, Speed and Time at the bottom) to remember which operation to use.
- For time durations in minutes (e.g., 30 mins), convert them to fractions of an hour (e.g., 0.5 hours) before calculating.
✅ Mastering these formulas allows you to solve journey problems quickly and accurately—a vital skill for 11+ success.
Practice Papers
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