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Landmark Problem Time, Speed and Distance Video Lecture - General Aptitude
FAQs on Landmark Problem: Time, Speed and Distance
| 1. How do I solve time speed and distance problems when the speed keeps changing? |  |
Ans. When speed varies, break the journey into segments where speed remains constant, then calculate time for each segment separately using time = distance ÷ speed. Add all individual times to find total journey time. This segment-based approach works for problems involving relative speed, different modes of transport, or varying speeds across different routes.
| 2. What's the difference between average speed and constant speed in distance problems? | |
Ans. Constant speed means an object travels the same distance in equal time intervals throughout the journey. Average speed is total distance divided by total time, which may differ from constant speed when velocity changes. For landmark problems, average speed calculations are crucial when objects travel different distances at different speeds across multiple segments.
| 3. How do I handle problems where two objects are moving towards or away from each other? | |
Ans. In relative motion problems, add speeds when objects move towards each other, and subtract when moving in the same direction. The relative speed determines how quickly the gap between them closes or increases. This concept is essential for SSC CGL time, speed and distance landmark problems involving trains, boats, or cyclists meeting on a route.
| 4. Why do upstream and downstream problems confuse me, and how do I set them up correctly? | |
Ans. Upstream means moving against water current, so effective speed = object's speed minus water speed. Downstream means moving with current, so effective speed = object's speed plus water speed. Always identify current direction first, then apply these relationships to find time or distance in boat and river crossing landmark problems.
| 5. How can I quickly identify which formula to use in a time, speed and distance problem? | |
Ans. Scan the problem to identify what's given: if distance and speed are known, use time = distance ÷ speed; if time and speed are given, use distance = speed × time; if distance and time are given, use speed = distance ÷ time. Most SSC CGL landmark problems require rearranging one of these three fundamental relationships based on missing information.
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Apr 18, 2026 Last updated
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