Question
A carriage travels in the fog passed along a man who was walking @ 3kmph in the same direction. He could see the carriage for 4 minutes and it was visible to him upto a distance of 100 metres. What was the speed of carriage?
60 min = 3,000 4 min = 3000/60 × 4 ⇒ 200 Carriage ⇒ 4 min = 300 60 min = 300/4 × 60 ⇒ 4500 Speed = 4.5kmph Alternate Method: (d₁)/(d₂) = (S₁)/(S₂) 300/200 = (S₁)/3 ⇒ S₁ ⇒ 9/2 = 4.5kmph More Time and distance Questions
- A truck covers the distance from Depot A to Depot B at 30 km/h and returns at 45 km/h. Find its average speed.
- A cyclist travelling at three-fourths of his usual speed takes 12 minutes longer than his usual time to cover a certain distance. Calculate the usual time ...
- Aman takes 36 minutes more than Sudhanshu to cover 130 km. If Aman doubles his speed, he takes 42 minutes less than Sudhanshu to cover the same distance. T...
- The distance between two points 'P' and 'Q' is 2,400 km. Karan and Mohit can cover the distance between 'P' and 'Q' in 40 hours and 32 hours, respectively....
- A thief snatched a lady's purse and began running north towards a bus that was 200 meters away. A policeman, who was standing 40 meters south of the lady, ...
- The ratio of the speed of a truck to a car is 6:5 and the car travels 12 km less than the truck in the same time. If the time taken by the truck to travel ...
- Two trains of lengths 280 meters and 320 meters are running in the same direction at speeds of 54 km/h and 72 km/h, respectively. How much time will the fa...
- Car ‘R’ can cross a 900 metre long bridge in 30 seconds. Car ‘R’ is 180 metres ahead of car ‘S’ which is travelling in the same direction as that of car ‘R...
- A reporter gets Rs. 40 per km for taxi travel and Rs. 20 per km for auto travel. In one week, he travelled 120 km and claimed Rs. 3600. How many km did he ...
- A Bus covers its journey at a speed of 40km/hr in 8 hours. If the same distance is to be covered in 4 hours, then by how much % will be the speed of the bu...
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
