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:
350 comments Page 25 of 35.
Raul said:
1 decade ago
100*(t)=150*(t+12.5)
t=37.5min
t
=37.5/60hr
speed=(75*60)/37.5
=120
t=37.5min
t
=37.5/60hr
speed=(75*60)/37.5
=120
Jarvis said:
6 years ago
If it's 50x.
It says that train travels in 50% less speed than the car.
It says that train travels in 50% less speed than the car.
Sandy said:
1 decade ago
Please any one can explain the equation [75/x]-[75/1.5x] = [12.5/60].
VIJAY said:
6 years ago
Here, we can use Car travel time = train travel time + stoppage time.
KArthik said:
6 years ago
How did 75/x -75/(3/2x) = 125/(10*60) came? Please explain this.
Navin said:
4 years ago
@Sahil Tiwari.
Thanks for explaining the answer in the simplest way.
Thanks for explaining the answer in the simplest way.
Gauravnagayach said:
1 decade ago
please explain:
(x+(50/100)*x)= 3x/2
Where 3x/2 & how 150/100?
(x+(50/100)*x)= 3x/2
Where 3x/2 & how 150/100?
Satyajit said:
1 decade ago
Train is faster so it should have been 75/(3/2*x)-75/x = 125/10*60.
Navas said:
5 years ago
I'm not getting your answer method, please explain to me in detail.
Aditya said:
5 years ago
Those who are not understanding 75/ 3/2.
For them (75*2) /3 = 50.
For them (75*2) /3 = 50.
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