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 8 of 35.
Navas said:
5 years ago
I'm not getting your answer method, please explain to me in detail.
Hani said:
5 years ago
@Shavra Yaqub Shah.
I'm not getting your answer method, please explain to me in detail.
I'm not getting your answer method, please explain to me in detail.
Shavra yaqub shah said:
5 years ago
T1 - T2 = 12.5 minutes
speed1/distance1 - speed2/distance2 = 12.5 minutes .
@All.
This is how you form the equation and solve the problem related to the time difference (early/late than usual),or speed difference or distance difference.
speed1/distance1 - speed2/distance2 = 12.5 minutes .
@All.
This is how you form the equation and solve the problem related to the time difference (early/late than usual),or speed difference or distance difference.
Jay said:
5 years ago
How 3/2 come? Please explain.
Priyam said:
5 years ago
@Aditya Mohanty.
For converting the minute into the hour we take 12.5/60 and when we remove the decimal point it became 125/60*10.
For converting the minute into the hour we take 12.5/60 and when we remove the decimal point it became 125/60*10.
Nahid said:
5 years ago
Let,
Speed of the car= x kph.
So, speed of the train = x + 50% of x = (3x/2) kph.
Speed of the car= x kph.
So, speed of the train = x + 50% of x = (3x/2) kph.
Aditya Mohanty said:
5 years ago
How come is the speed 125/10 * 60?
Dimple said:
5 years ago
How come 3/2?
Piyush said:
5 years ago
Can anyone please explain whole solution again?
Anandhi said:
5 years ago
@Anjali.
12.5 minutes lost in stopping so(time difference).
12.5/60 (dividing by 60 for converting minutes to hours).
To remove decimal dividing by 10.
125/10 * 60.
12.5 minutes lost in stopping so(time difference).
12.5/60 (dividing by 60 for converting minutes to hours).
To remove decimal dividing by 10.
125/10 * 60.
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