Speed Distance Time: The relationship between time, speed, and distance is a basic concept in physics and our daily life. The formula that relates these three variables is:
Distance=Speed×Time
Distance=Speed×Time
Speed, Distance, Time Calculator
What is speed distance time?

Speed Distance Time Reasoning Tricks
Speed distance time is the formula used to explain the relation between speed, distance and time. It is:
Speed = Distance ÷ Time
Time = Distance ÷ Speed
Distance = Speed × Time
Units of Speed Distance Time
- Distance: meters (m), kilometers (km), miles, etc.
- Speed: meters/second (m/s), kilometers/hour (km/h), miles/hour (mph), etc.
- Time: seconds (s), minutes (min), hours (h), etc.
Formulas of Speed Distance Time
The formulas for speed, distance, and time are derived from their relationship:
1. Distance
Distance=Speed×Time
2. Speed
Speed=Distance/Time
3. Time
Time=Distance/Speed
Basic questions
- A car travels 120 km in 2 hours. What is its speed?
- A train is moving at a speed of 80 km/h. How much distance will it cover in 5 hours?
- A cyclist covers a distance of 45 km in 3 hours. What is the average speed of the cyclist?
- If a person walks at a speed of 4 km/h, how long will it take to cover a distance of 12 km?
Intermediate questions
- An airplane flies at a speed of 600 km/h. How much distance can it cover in 3.5 hours?
- A truck is traveling at a speed of 50 km/h and has to cover a distance of 250 km. How long will the journey take?
- A motorcycle travels 300 km in 4 hours. If it maintains the same speed, how much distance can it cover in 7 hours?
- A person runs at a speed of 8 km/h for 2.5 hours. What distance does the person cover?
Challenging Questions
- Two cars start from the same place. Car A runs at a speed of 60 km/h, and car B runs at a speed of 75 km/h. How far will they be from each other after 4 hours?
- A train leaves the station at 7:00 am and travels at a speed of 90 km/h. Another train leaves the same station at 8:30 am and travels at a speed of 120 km/h. At what time will the second train catch up with the first train?
- A boat travels 60 km downstream in 2 hours and 40 km upstream in the same time. If the current speed of the river is 5 km/h, what is the speed of the boat in still water?
Speed Distance Time formula examples
Example 1: Finding Distance
Question: A car travels at a speed of 60 km/h for 2 hours. What is the distance covered?
Solution:
Use the formula:
Distance=Speed×Time
Substitute the values:
Distance=60 km/h×2 hours=120 km
Answer: The distance covered is 120 km.
Example 2: Finding Speed
Question: A train covers 240 km in 3 hours. What is its speed?
Solution:
Use the formula:
Speed=Distance/Time
Substitute the values:
Speed=240 km/3 hours=80 km/h
Answer: The speed of the train is 80 km/h.
Example 3: Finding Time
Question: A cyclist travels 90 km at a speed of 30 km/h. How much time does the journey take?
Solution:
Use the formula:
Time=Distance/Speed
Substitute the values:
Time=90 km/30 km/h=3 hours
Answer: The journey takes 3 hours.
Example 4: Complex Problem
Question: A plane travels 1500 km in 3 hours. Then it travels an additional 1000 km in 2 hours. What is the average speed for the entire trip?
Solution:
First, calculate the total distance:
Total Distance=1500 km+1000 km=2500 km
Next, calculate the total time:
Total Time=3 hours+2 hours=5 hours
Now, use the speed formula:
Average Speed=Total DistanceTotal Time
Average Speed=2500 km5 hours=500 km
Answer: The average speed is 500 km/h.
Example 5: Two Moving Objects
Question: Two cars start at the same point. Car A travels at 60 km/h, and Car B travels at 80 km/h. How far apart are they after 3 hours?
Solution:
Find the distance covered by each car:
Distance of Car A=60 km/h×3 hours=180 km
Distance of Car B=80 km/h×3 hours=240 km
Find the difference in distances:
Difference=240 km−180 km=60 km
Answer: The two cars are 60 km apart after 3 hours.
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Speed Distance Time Triangle
The speed, distance, and time triangle is a visual representation of the relationship between these three variables. It’s often used in physics and mathematics to solve problems involving motion.
The triangle looks like this:
D
——-
| | S
| T |
| |
——-
- D is the distance traveled
- S is the speed (or velocity)
- T is the time taken
You can rearrange the formula depending on what you’re solving for:
- Distance (D) = Speed (S) × Time (T)
- Speed (S) = Distance (D) ÷ Time (T)
- Time (T) = Distance (D) ÷ Speed (S)
So, by knowing any two of the variables, you can calculate the third!