Speed Distance Time
Speed, Distance, Time (SDT) problems use the fundamental relationship: Distance = Speed × Time. These problems require calculating one variable when the other two are given. You must also handle unit conversions (km/h to m/s, minutes to hours) correctly.
What You'll Learn
Introduction to Speed Distance Time
Speed, Distance, Time (SDT) problems use the fundamental relationship: Distance = Speed × Time. These problems require calculating one variable when the other two are given. You must also handle unit conversions (km/h to m/s, minutes to hours) correctly.
Prerequisites
How to Solve Speed Distance Time Problems
Step 1: Identify the unknown variable (Distance, Speed, or Time)
Step 2: Use formula D = S × T
Step 3: Convert units to be consistent (km/h with hours, m/s with seconds)
Step 4: Rearrange formula if needed: S = D/T, T = D/S
Step 5: Calculate the result
Step 6: Round to required decimal places
Step 7: Answer with appropriate units
Example Problem
Example: A car travels at 60 km/h for 2.5 hours. What distance does it cover? Solution: Step 1: Unknown = Distance Step 2: D = S × T = 60 × 2.5 = 150 km Answer: 150 km
Pro Tips & Tricks
- km/h to m/s: multiply by 5/18 (or divide by 3.6)
- m/s to km/h: multiply by 18/5 (or multiply by 3.6)
- Time in minutes: convert to hours by dividing by 60
- Distance in km, speed in km/h, time in hours is the standard combination
- If two variables are given, the third is directly calculated
Shortcut Methods to Solve Faster
Common Mistakes to Avoid
Practice Worksheets
Practice makes perfect! Work through these worksheets to master Speed Distance Time. Each worksheet contains 20 questions with detailed explanations. Start from Worksheet 1 and progress through increasing difficulty levels.
Exam Importance
Speed Distance Time is an important topic for various competitive exams. Here's how frequently it appears:
Ready to Master Speed Distance Time?
Start with Worksheet 1 and work your way up to expert level! Each worksheet includes: