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:
342 comments Page 25 of 35.
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.
Varsha said:
6 years ago
How can we assume that car speed is 100 not other than that speed?
Purvi said:
5 years ago
How can we assume that car speed is 100 not other than that speed?
Sriram Kalyan said:
1 decade ago
Can you please explain the first step. How did you take 150x/100?
Nilakshi said:
8 years ago
Time taken by train minus time taken by the car is how come that?
Bhavana said:
1 decade ago
Car seed is 100.
So train speed in 50% more.
So it is 150/100.
So train speed in 50% more.
So it is 150/100.
(2)
Jamal akhter said:
1 decade ago
Could you explain how time for train you had taken 75/(3/2.x) ?
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