# Speed Time Questions Relative Speed YouTube Lecture Handouts

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Watch Video Lecture on YouTube: Speed, Time & Distance (Aptitude) - 3 Concepts & Shortcuts: Systematically Solve All Problems

Speed, Time & Distance (Aptitude) - 3 Concepts & Shortcuts: Systematically Solve All Problems

480 km

14/15 hrs

## Two Friends Started from a to B in the Same Direction Along a Straight Line Simultaneously. The Faster Friend Tim Was on Bike, While Jim Was on Bicycle. The Ratio of Their Speeds Was 1:5. Sometime Later Tim Parked His Bike and Started Running Back Towards Jim’S Bicycle. His Speed Dropped by 80%. Jim Had Travelled 15/2 Km in That Time. They Meet After 4 Hrs. What Was the Speed of Bicycle?

d=75/2, 5x=75/4, x = 15/4

## Ram and Shyam Run a Race between Points a and B, 5 Km Apart. Ram Starts at 9 Am from a at a Speed of 5 Km/Hr, Reaches B, and Returns to a at the Same Speed. Shyam Starts at 9:45 a.m. From a at a Speed of 10 Km/Hr, Reaches B and Comes Back to a at the Same Speed. At What Time Do Ram and Shyam Cross Each Other? At What Time Does Shyam Overtake Ram?

Cross at 10:10

Overtake at 10:30

4 hrs

## A Train X Departs from Station a at 11.00 a.m. For Station B, Which is 180 Km Away. Another Train Y Departs from Station B at 11.00 a.m. To Station a. Train X Travels at an Average Speed of 70 Km/Hr and Does Not Stop Anywhere Until It Arrives at Station B. Train Y Travels at an Average Speed of 50 Km/Hr, but Has to Stop for 15 Minutes at Station C, Which is 60 Km Away from Station B en Route to Station a. Ignoring the Lengths of the Trains, What is the Distance, to the Nearest Km, from Station a to the Point Where the Trains Cross Each Other?

84 km, 325/2 km, 65/48 hr, 112.29 hr

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