Question
A security guard notices a suspect 120 meters ahead and
starts chasing him. The suspect runs at a speed of 18 m/sec, while the security guard runs at 22 m/sec. How long will it take for the security guard to catch the suspect?Solution
ATQ,
The time taken for the security guard to catch the suspect =
120 / (22 - 18) = 120 / 4 = 30 sec
A bike departs from point X at 9:00 AM toward point Y, traveling at a speed of 45 km/h. Two hours later, a car starts from point X toward point Y at a s...
A man covered a distance of 240 km in 4 hours on a bike. How much distance will he cover on a bicycle in 8 hours if he rides the bicycle at one-tenth th...
A car covers 135 km in 3 hours. The scooter is 2.5 m/s slower than the car. Find the scooter’s distance (in metres) in 5 minutes.
If a person walks 40% more than of his usual speed, reaches his distance 90 minutes before. If the destination is 441 km away, then the usual speed of a...
A train covers a certain distance at a speed of 36 km/h and the next same distance with a speed of 45 km/h and the next same distance with a speed of 60...
Amit drove for 6 hours at a speed of 60 miles per hour and for 6 hours at 50 miles per hour. What was his average speed (in miles per hour) for the whol...
A bike travels 96 km in 72 minutes. If the speed is reduced by 12 km/h, find the time taken to cover the same distance.
Due to fog, the speed of a train was reduced to (2/3)rd of its original speed, resulting in a delay of 45 minutes. Find the usual time taken ...
A thief and a policeman are 80 km apart. The thief is traveling at a speed of 48 km/h, while the policeman is moving at 80 km/h. How far will the police...
If 180-meter-long train crosses a pole in 18 seconds, find the speed of train in kilo meter/hour.
