Speed & Distance Formula
Speed & Distance formulas and a topic-wise mock test for quantitative aptitude placement exams like TCS NQT, Infosys, and Wipro. Revise, then practice.
Key Speed & Distance Formulas
Speed, Time & Distance - Basic Concepts
Speed, Time & Distance problems involve calculating the relationship between speed, distance travelled, and time taken.
- Speed = Distance / Time
- Distance = Speed × Time
- Time = Distance / Speed
- Maintain consistent units before calculation
- Relative Speed is used when two objects move simultaneously
Speed, Time & Distance - Important Formulas
Essential formulas for solving speed, distance, train, and boat problems.
- Speed = Distance / Time
- Distance = Speed × Time
- Time = Distance / Speed
- 1 km/hr = 5/18 m/s
- 1 m/s = 18/5 km/hr
- Average Speed = Total Distance / Total Time
- Average Speed (Equal Distances) = (2 × S1 × S2) / (S1 + S2)
- Relative Speed (Opposite Direction) = S1 + S2
- Relative Speed (Same Direction) = |S1 - S2|
- Train Crossing Pole: Time = Train Length / Speed
- Train Crossing Platform: Time = (Train Length + Platform Length) / Speed
- Boat Downstream Speed = Boat Speed + Stream Speed
- Boat Upstream Speed = Boat Speed - Stream Speed
- Boat Speed = (Downstream + Upstream) / 2
- Stream Speed = (Downstream - Upstream) / 2
Speed, Time & Distance - Practical Examples
Step-by-step solutions to common speed and distance problems.
- Example: Speed = 60 km/hr, Time = 2 hr → Distance = 120 km
- Example: Distance = 150 km, Speed = 50 km/hr → Time = 3 hr
- Example: Two trains at 60 km/hr and 40 km/hr in opposite directions → Relative Speed = 100 km/hr
- Example: Train Length = 200 m, Speed = 20 m/s → Time to cross pole = 10 sec
- Type 1: Find Speed, Time or Distance
- Type 2: Relative Speed problems
- Type 3: Train crossing pole/platform
- Type 4: Boats and Streams
- Type 5: Average Speed questions
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