A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 18 seconds. What is the length of the platform in meters?
A.
240 meters
B.
360 meters
C.
420 meters
D.
600 meters
2.
A train traveling at 100 kmph overtakes a motorbike traveling at 64 kmph in 40 seconds. What is the length of the train in meters?
A.
1777 meters
B.
1822 meters
C.
400 meters
D.
1400 meters
3.
Jim travels the first 3 hours of his journey at 60 mph speed and the remaining 5 hours at 24 mph speed What is the average speed of Jim's travel in mph?
A.
42 mph
B.
36 mph
C.
37.5 mph
D.
42.5 mph
4.
A man can row 50 km upstream and 72 km downstream in 9 hours. He can also row 70 km upstream and 90 km downstream in 12 hours. What is the rate of current ?
A.
3 kmph
B.
8 kmph
C.
4 kmph
D.
None of these
5.
Ram covers a part of the journey at 20 kmph and the balance at 70 kmph taking total of 8 hours to cover the distance of 400 km. How many hours has been driving at 20 kmph?
A.
2 hours
B.
3 hours 20 minutes
C.
4 hours 40 minutes
D.
3 hours 12 minutes
6.
Yana and Gupta leave points x and y towards y and x respectively simultaneously and travel in the same route. After meeting each other on the way, Yana takes 4 hours to reach her destination, while Gupta takes 9 hours to reach his destination. If the speed of Yana is 48 km/hr, what is the speed of Gupta?
A.
72 kmph
B.
32 mph
C.
20 mph
D.
None of these
7.
By walking at 3/4^{th} of his usual speed, a man reaches office 20 minutes later than usual. What is his usual time?
A.
30 min
B.
60 min
C.
70 min
D.
50 min
8.
I travel the first part of my journey at 40 kmph and the second part at 60 kmph and cover the total distance of 240 km to my destination in 5 hours. How long did the first part of my journey last?
A.
4 hours
B.
2 hours
C.
3 hours
D.
2 hours 24 minutes
9.
A passenger train covers the distance between stations X and Y, 50 minutes faster than a goods train. Find this distance if the average speed of the passenger train is 60 kmph and that of goods train is 20 kmph.
A.
20 kms
B.
25 kms
C.
45 kms
D.
40 kms
10.
The speed of a motor boat itself is 20 km/h and the rate of flow of the river is 4 km/h. Moving with the stream the boat went 120 km. What distance will the boat cover during the same time going against the stream?
A.
80
B.
180
C.
60
D.
100
11.
A man and a woman 81 miles apart from each other, start travelling towrds each other at the same time. If the man covers 5 miles per hour to the women's 4 miles per hour, how far will the woman have travelled when they meet?
A.
27
B.
36
C.
45
D.
None of these
12.
Two boys begin together to write out a booklet containing 535 lines. The first boy starts with the first line, writing at the rate of 100 lines an hour; and the second starts with the last line then writes line 534 and so on, backward proceeding at the rate of 50 lines an hour. At what line will they meet?
The average speed of an object or person can be calculated as the distance travel divided by the time it took to cover the said distance. In class today we have come to cover the concept of average speed. Test out what you...
Questions: 5 | Attempts: 1053 | Last updated: Mar 21, 2022