ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & Earn Sign Up Login Menu



0 vote

During its journey, a bus travels at a speed of 50 km/hr for 60 km, at 60 km/hr for 80 km and at 75 km/hr for 30 km. If the bus travelled at a constant speed of 60 km/hr, it would reach its destination?

Asked on by | Votes 0 | Views: 51 | Tags: speed time and distance     | quantitative aptitude     | Add Bounty

During its journey, a bus travels at a speed of 50 km/hr for 60 km, at 60 km/hr for 80 km and at 75 km/hr for 30 km. If the bus travelled at a constant speed of 60 km/hr, it would reach its destination?
1). 6 min. early
2). 4 min. early
3). In the same time
4). 4 min. late


Share on Facebook      Share on Whatsapp       Share on Twitter




1 answers

3 vote
Answered by on | Votes 3 |

⇒ Total distance travelled = 60 + 80 + 30 = 170 km

? Time = Distance/Speed

Total time taken by bus = 60/50 + 80/60 + 30/75 = 6/5 + 4/3 + 2/5 = 44/15 = 2.93 hours

When the speed of bus is 60 km/hr,

Time taken by bus = 170/60 = 17/6 = 2.83 hours

∴ The bus will reach its destination = (2.93 - 2.83) = 0.1 hrs = 0.1 × 60 = 6 min early

Join Telegram Group




Answer This Question

Name:
Email:
Answer :
Sum of (1+4)
Submit:

Other Questions

1. A train passes an electrical pole in 30 seconds and passes a platform 240 m long in 2 Minutes. Find the length of the train:

2. Train A is 120 m long crosses a pole in 12 seconds and another train B of the same length travelling in the opposite direction crosses the same pole in 15 seconds. Had the length of train A been twice of original length then how long will the train B take to cross the train A ? 

3. A car travels 25 km an hour faster than a bus for a journey of 500 km. If the bus takes 10 hours more than the car, then the difference between the speeds of the car and the bus is 

4. The speed of a boat is 60 m/hr. If the boat can travel 15 m downstream in the same time as it can travel 10 m upstream, find the speed of current.

5. Two stations A and B are 210 km apart on a straight line. One train starts from A at 6 a.m and travels towards B at 40 km per hour speed. Another train starts from B at 9.a.m and travels towards A at a speed of 50 km per hour. At what time will they meet?

6. Nirav can row 12 kmph in still water. He took twice as much time to row up than as to row down the same distance in the river. Calculate the speed of the current.

7. A gun is fired at a distance of 6.64 km away from Ram. He hears the sound 20 seconds late. Then the speed of the sound is

8. A boat travel 32 km upstream in 8 hr and 28 km downstream in 4 hr. Find the speed of a boat in still water and the speed of current?

9. A man can row 8 km/h in still water. When the river is running at 2.5 km/h, it takes him 3 h 12 min to row to a place and coming back. How far is the place?

10. A train running at an average speed of 48 km/hr performs a journey in 6 hrs 30 min. How long would the same journey take if it after crossing 180 kms the speed was reduced to 33 km/hr?