Time, Speed & Distance
20 Questions
Practice Problems
Time, Speed & Distance Interview Questions
20 Questions
Time, Speed & Distance
What is the basic relationship between Speed, Distance, and Time?
Speed, Distance, and Time are related through a simple formula. Formula: Speed = Distance / Time Distance = Speed × Time Time = Distance / Speed Example: A car travels 120 km in 2 hours. Speed = 120 / 2 = 60 km/h
A car travels 240 km in 4 hours. Find its speed.
Use the speed formula. Formula: Speed = Distance / Time Solution: Speed = 240 / 4 = 60 km/h Answer: 60 km/h
A train travels at 72 km/h. How much distance will it cover in 5 hours?
Use the distance formula. Formula: Distance = Speed × Time Solution: Distance = 72 × 5 = 360 km Answer: 360 km
A person travels 180 km at 60 km/h. How much time will he take?
Use the time formula. Formula: Time = Distance / Speed Solution: Time = 180 / 60 = 3 hours Answer: 3 hours
Convert 54 km/h into m/s.
To convert km/h into m/s multiply by 5/18. Formula: m/s = km/h × 5/18 Solution: 54 × 5/18 = 15 m/s Answer: 15 m/s
Convert 20 m/s into km/h.
To convert m/s into km/h multiply by 18/5. Formula: km/h = m/s × 18/5 Solution: 20 × 18/5 = 72 km/h Answer: 72 km/h
A train 150 m long crosses a pole in 10 seconds. Find its speed.
Distance covered equals train length. Formula: Speed = Distance / Time Solution: Speed = 150 / 10 = 15 m/s Converting to km/h: 15 × 18/5 = 54 km/h Answer: 54 km/h
A train 200 m long crosses a platform 300 m long in 25 seconds. Find its speed.
Total distance = Length of train + Length of platform Distance = 200 + 300 = 500 m Speed = 500 / 25 = 20 m/s Answer: 20 m/s
A man walks at 5 km/h. How far will he walk in 3 hours?
Use distance formula. Distance = Speed × Time Distance = 5 × 3 = 15 km Answer: 15 km
A train crosses a 250 m platform in 20 seconds and a pole in 10 seconds. Find the length of the train.
Let train length = x m. Speed from crossing pole: x / 10 For platform: (x + 250) / 20 = x / 10 2(x + 250) = 2x x = 250 m Answer: 250 m
A car increases its speed from 40 km/h to 60 km/h. By what percentage does the speed increase?
Formula: Percentage Increase = (Increase / Original Speed) × 100 Solution: (20 / 40) × 100 = 50% Answer: 50%
If a person travels half the distance at 40 km/h and the other half at 60 km/h, find the average speed.
For equal distances: Formula: Average Speed = (2xy)/(x+y) Solution: = (2 × 40 × 60)/(40 + 60) = 4800/100 = 48 km/h Answer: 48 km/h
A train 180 m long travels at 54 km/h. How much time will it take to cross a pole?
Convert speed into m/s. 54 × 5/18 = 15 m/s Time = Distance / Speed Time = 180/15 = 12 seconds Answer: 12 seconds
Two trains of lengths 150 m and 100 m move in opposite directions at 54 km/h and 36 km/h. Find the time taken to cross each other.
Total Length = 150 + 100 = 250 m Relative Speed = 54 + 36 = 90 km/h Convert to m/s: 90 × 5/18 = 25 m/s Time = 250/25 = 10 seconds Answer: 10 seconds
Two trains move in the same direction at 72 km/h and 54 km/h. Find their relative speed.
For same direction: Relative Speed = Difference of speeds 72 - 54 = 18 km/h Answer: 18 km/h
A boat travels downstream at 18 km/h and upstream at 10 km/h. Find the speed of the stream.
Formula: Speed of Stream = (Downstream - Upstream)/2 Solution: (18 - 10)/2 = 4 km/h Answer: 4 km/h
A boat travels downstream at 18 km/h and upstream at 10 km/h. Find the speed of the boat in still water.
Formula: Speed in Still Water = (Downstream + Upstream)/2 Solution: (18 + 10)/2 = 14 km/h Answer: 14 km/h
A cyclist travels 90 km at 30 km/h. How much time does he take?
Formula: Time = Distance / Speed Solution: 90 / 30 = 3 hours Answer: 3 hours
A person covers a distance in 8 hours at 50 km/h. What speed is required to cover the same distance in 5 hours?
Distance = 50 × 8 = 400 km Required Speed = 400 / 5 = 80 km/h Answer: 80 km/h
A train 240 m long running at 72 km/h crosses a bridge 360 m long. Find the time taken.
Total Distance = 240 + 360 = 600 m Speed = 72 × 5/18 = 20 m/s Time = 600 / 20 = 30 seconds Answer: 30 seconds