Basic Time-Speed-Distance
OpenUse fundamental formula S = D/T.
General Aptitude
Time-Speed-Distance Tutorial
Time-Speed-Distance is a high-weightage topic. Master unit conversions and the basic formula S=D/T.
Key Formulas
- Speed = Distance / Time
- Distance = Speed × Time
- Time = Distance / Speed
- Average Speed = 2×Speed1×Speed2 / (Speed1 + Speed2)
Average Speed
OpenFind average speed for journey with different speeds.
Train Problems
OpenTime when train passes platform/person.
Basic Time-Speed-Distance
Use fundamental formula S = D/T.
When to Use: For any basic TSD calculation.
Step-by-Step Method
- Speed = Distance / Time
- Distance = Speed × Time
- Time = Distance / Speed
- Keep units consistent!
Worked Example
Question: A car travels 240 km in 4 hours. Find speed.
- Speed = Distance / Time
- Speed = 240 / 4 = 60 km/hr
Final Answer: 60 km/hr
Option Analysis
Common Mistakes
Quick Shortcut: S=D/T, D=S×T, T=D/S. Remember consistent units!
Generated 5 focused questions for this pattern.
Q1. Two values are in ratio 4:2. If total is 180, find first value.
Answer: 120
Explanation: Step 1: Total parts = 4+2. Step 2: One part = 180/(6). Step 3: First value = 4 parts = 120.
Q2. Two values are in ratio 2:4. If total is 90, find first value.
Answer: 30
Explanation: Step 1: Total parts = 2+4. Step 2: One part = 90/(6). Step 3: First value = 2 parts = 30.
Q3. Two values are in ratio 4:6. If total is 120, find first value.
Answer: 48
Explanation: Step 1: Total parts = 4+6. Step 2: One part = 120/(10). Step 3: First value = 4 parts = 48.
Q4. Two values are in ratio 5:3. If total is 200, find first value.
Answer: 125
Explanation: Step 1: Total parts = 5+3. Step 2: One part = 200/(8). Step 3: First value = 5 parts = 125.
Q5. Two values are in ratio 6:2. If total is 180, find first value.
Answer: 135
Explanation: Step 1: Total parts = 6+2. Step 2: One part = 180/(8). Step 3: First value = 6 parts = 135.