A constant distance from Chennai to Bangalore is covered by Express train at 100 km /hr. If It returns to the same distance at 80 km /hr, then the average speed during the whole Journey is
A constant distance from Chennai to Bangalore is covered by Express train at 100 km /hr. If It returns to the same distance at 80 km /hr, then the average speed during the whole Journey is
SSC CGL Books
3 answers
Answered by
Guest on
2018-01-20 02:30:44 | Votes
24 |
# | Last Updated:
2021-09-18 12:52:56 Correct answer was option 4
Join Telegram Group
Answered by
Guest on
2018-02-04 06:17:16 | Votes
1 |
# If same distance are covered at
two different speed of x and y
kmph, the average speed of journey =$\frac{2xy}{x+y}$
=$\frac{2\times100\times80}{100+80}kmph=88.89kmph$
Answered by
Guest on
2018-04-14 22:37:19 | Votes
37 |
# I think it may be a Right answer
If same distance are covered at
Other Questions
1. A train travelled at an average speed of 100 km/hr, stopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?
2. Two trains are moving in opposite directions with speeds of 6 m/s and 12 m/s, respectively. Find their relative speed?
3. A is faster than B. A and B each walk 24 km. The sum of their speeds is 7 km/hr and the sum of times taken by them is 14 hours. Then, A’s speed is equal to
4. A boy goes to his school from his house at a speed of 3 km/hr and returns at a speed of 2 km/hr. If he takes 5 hours in going and coming, the distance between his house and school is
5. A train 150m long passes a km stone in 30 seconds and another train of the same length travelling in opposite direction in 10 seconds. The speed of the second train is :
6. A train moves with a speed of 108 kmph. Its speed in metres per second is :
7. Walking at $\frac{3}{4}$ of his usual speed, a man is $1\frac{1}{2}$ hours late. His usual time to cover the same distance, (in hours) is
8. Three cyclists A, B and C with respective speeds of 8 m/sec , 10 m/sec and 12 m/sec are cycling around a circular track of length 120 m. After how many seconds will they meet for the first time right
9. A 420 m long train crosses a pole in 70s. What is the speed of the train?
10. Excluding stoppages, the speed of a bus is 72 kmph and including stoppages, it is 60 kmph. For how many minutes does the bus stop per hour?
