Time, Speed & Distance – Tricks & Tough Problems
Master speed-based concepts and shortcut tricks for bank exam problems.
1. Important Concepts
- Distance = Speed × Time
- Speed = Distance / Time
- Time = Distance / Speed
- Average speed formula
2. Speed Tricks
- Use ratio method instead of full calculation
- Average speed = (2xy) / (x+y)
- Convert km/hr to m/s → ×5/18
- Relative speed for trains
3. Tough Problems
Q1: A car travels 60 km in 1 hour. Find speed in m/s.
Solution:
60 × 5/18 = 16.67 m/s
Q2: Two trains of 100 m and 150 m cross each other in 10 seconds. Find speed.
Solution:
Total distance = 250 m
Speed = 250/10 = 25 m/s
Q3: A man travels 30 km at 60 km/hr and returns at 40 km/hr. Find average speed.
Solution:
(2 × 60 × 40) / (60 + 40) = 4800/100 = 48 km/hr
Q4: Two persons start from same point in opposite directions at 10 km/hr and 15 km/hr. When will they be 50 km apart?
Solution:
Relative speed = 25 km/hr
Time = 50/25 = 2 hours
Q5: A train 200 m long crosses a pole in 20 seconds. Find speed.
Solution:
Speed = 200/20 = 10 m/s
= 36 km/hr
4. Exam Tips
- Memorize conversion formulas
- Use relative speed shortcuts
- Avoid long calculations
- Practice train-based problems
Shaktimatha Learning
Quant • Time Speed Distance • Bank Exam Preparation
Quant • Time Speed Distance • Bank Exam Preparation
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