Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 4)
4.
A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is:
Answer: Option
Explanation:
Let speed of the car be x kmph.
| Then, speed of the train = | 150 | x | = |  |
3 | x |  kmph. |
| 100 | 2 |
 |
75 | - | 75 | = | 125 |
| x | (3/2)x | 10 x 60 |
 |
75 | - | 50 | = | 5 |
| x | x | 24 |
| x = |
|
25 x24 | |
= 120 kmph. |
| 5 |
Discussion:
345 comments Page 21 of 35.
Animesh Biswas said:
2 years ago
T:C ( speed) = 3:2.
T:C ( time) = 2:3.
Time is taken by car = 12.5× 3.
Speed of the car = 120 km/h.
T:C ( time) = 2:3.
Time is taken by car = 12.5× 3.
Speed of the car = 120 km/h.
(53)
Eleanor said:
10 years ago
@Abhishek Banik.
Can you please explain from the T of car - T of train?
You have lost me there.
Can you please explain from the T of car - T of train?
You have lost me there.
Anonymous said:
1 decade ago
Let the speed of the car be x.
Then 50 percent of x = x/2.
Speed of the train = x + x/2 = 3x/2.
Then 50 percent of x = x/2.
Speed of the train = x + x/2 = 3x/2.
Amit Chauhan LPU said:
9 years ago
150/100 X it came because.
50% more than X ie :
=> (50/100) * x + x.
==> 150/100 * x.
50% more than X ie :
=> (50/100) * x + x.
==> 150/100 * x.
Nng said:
8 years ago
Hi, can you please explain why we are subtracting the time of car and train to get 12.5 minutes?
Navik said:
2 years ago
T:C ( speed) = 3:2.
T:C ( time) = 2:3.
Time taken by car = 12.5× 3.
Speed of the car = 120 km/h.
T:C ( time) = 2:3.
Time taken by car = 12.5× 3.
Speed of the car = 120 km/h.
(110)
Bhupat said:
1 decade ago
All righ but my question is. No body has taken 12.5 minus loss in train speed calculation. Why?
Sandhya said:
6 years ago
Can you explain 125/10*60 how it got or is there any simple method for answering this question.
Manu said:
1 decade ago
50% more than the car speed means lets car speed is 100 usual assumption 50% more means 150%.
Gayuverma said:
9 years ago
Can this question be solved using relative speed concept? If no, why? If yes, please show it.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers