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:
353 comments Page 24 of 36.
Deepana M said:
6 months ago
The train can travel 50% faster than a car. How to define 150 here? Please explain.
(9)
Chandra mouli said:
2 decades ago
Let car speed be xkmph
then train speed is 50% more than car speed
ie 50/100*x
then train speed is 50% more than car speed
ie 50/100*x
Nahid said:
6 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.
Dhruva & hitesh said:
1 decade ago
First we assume that the speed of car is 100% so as per Q.speed of train is 150%.
Surya said:
6 years ago
75/x - 75/(3/2) =125/10*60.
Anyone can explain this?
How this 125/10*60 came?
Anyone can explain this?
How this 125/10*60 came?
Sravya said:
1 decade ago
@kanchana
How did x+50/100 became 100x+50x as it will become (100x+50)/100x ?
How did x+50/100 became 100x+50x as it will become (100x+50)/100x ?
Siva said:
10 years ago
12.5/10 * 60,
= time/speed.
= 12.5/10 in minutes.
= 12.5/10 * 60 in seconds.
= time/speed.
= 12.5/10 in minutes.
= 12.5/10 * 60 in seconds.
Ershaad shah said:
8 years ago
@Trishita.
Can you please explain, how do you put 75/100x-75/150x = 125/600?
Can you please explain, how do you put 75/100x-75/150x = 125/600?
Xyz said:
2 decades ago
When we take 50x/100
we get x=[-75* 24]/5 = - 360kmph
its not in the option
we get x=[-75* 24]/5 = - 360kmph
its not in the option
Tanshi said:
10 years ago
The formula to convert from minutes to hours is:
hours = minutes ÷ 60.
hours = minutes ÷ 60.
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