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A car moves at a speed of 72 km/hr after repairing and moves at the speed of 54 km/hr before repairing. It covers X distance in 6 hours after repairing. How much time (inhours) will it take to cover 3X distance before repairing?
A
20
B
24
C
18
D
21
Correct Answer:
24
A bus moves at a speed of 84 km/hr after repairing and moves at a speed of 56 km/hr before repairing. It covers 2x distance in 8 hours after repairing.How much time (in hours) will it take to cover x distance before repairing?
A
8
B
5
C
6
D
9
A truck moves at the speed of 90 km/hr after repairing and moves at the speed of 80 km/hr before repairing. It covers x distance in 8 hours after repairing. How much time (in hours) will it take to cover 4x distance before repairing?
A
48
B
40
C
36
D
28
After repairing a scooter runs at a speed of 54 km/h and before repairing runs at speed of 48 km/h. It covers a certain distance in 6 hours afterrepairing. How much time will it take to cover the same distance before repairing?
A
6 hours 15 minutes
B
6 hours 45 minutes
C
7 hours
D
7 hours 30 minutes
Seven people A, B, C, D, E, F and G live on separate floors of a 7-floor building. Ground floor is numbered 1, first floor is numbered. 2 and so on until the topmost floor is numbered 7. Each one of these having a different cars-Cadillac, Ambassador, Fiat, Maruti, Mercedes, Bedford and Fargo but not necessarily in the same order. Only three people live above the floor on which A lives. Only one person lives between A and the one having a car Cadillac. F lives immediately below the one having a car Bedford. The one having a car Bedford lives on an even-numbered floor. Only three people live between the ones having a car Cadillac and Maruti. E lives immediately above C. E is not having a car Maruti. Only two people live between B and the one having a car Fargo. The one having a car Fargo lives below the floor on which B lives. The one having a car Fiat does not live immediately above D or immediately below B. D does not live immediately above or immediately below A. G does not have a car Ambassador. Question : How many people live between the floors on which D and the one having a car Bedford ?
A
One
B
Two
C
Three
D
Four
A car runs at the speed of 50 kms per hour when not serviced and runs at 60 km./hr. when serviced. After servicing the car covers a certain distance in 6 hours. How much time will the car take to cover the same distance when not serviced?
A
8.2 hrs
B
6.5 hrs
C
8 hrs
D
7.2 hrs
The velocity of a car increases uniformly from 18 kmhr
-1
to 72 kmhr
-1
in 10 s. Calculate the acceleration of the car.
A
1.5 ms<sup>-2</sup>
B
15 ms<sup>-2</sup>
C
1.5 ms<sup>2</sup>
D
15 ms<sup>-1</sup>
The ratio between the speed of a bus and train is 15 : 27 respectively. Also, a car covered a distance of 720 km in 9 hours. The speed of the Bus is three-fourth the speed of the car. How much distance will the train cover in 7 hours?
A
760 km
B
756 km
C
740 km
D
None of these
The speed of car B is half the speed of car A. If car A covers a distance of 120 km in 1.5 hours, what is the speed of car B?
A
40 kmph
B
60 kmph
C
30 kmph
D
50 kmph
A car takes 15 minutes less to cover a distance of 75 km, if it increases its speed by 10 km/hr from its usual speed. How much time would it take to cover a distance of 300 km using this speed ?
A
5 hrs
B
$$5\frac{1}{2}$$ hrs
C
6 hrs
D
$$6\frac{1}{2}$$ hrs
Car A travels at the speed of 65 km/hr and reaches its destination in 8 hours. Car B travels at the speed of 70 km/hr and reaches its destination in 4 hours. What is the ratio of the distance covered by car A and car B respectively ?
A
7 : 11
B
13 : 7
C
7 : 13
D
11 : 7
E
None of these