Aptitude - Problems on Trains - Discussion
Discussion Forum : Problems on Trains - General Questions (Q.No. 1)
1.
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
Answer: Option
Explanation:
| Speed = |  |
60 x | 5 |  m/sec |
= | |
50 | m/sec. |
| 18 | 3 |
Length of the train = (Speed x Time).
 Length of the train = |
|
50 | x 9 | m = 150 m. |
| 3 |
Discussion:
619 comments Page 24 of 62.
Nagaraju said:
1 decade ago
Here we have to think that they are asking the length of train.
First we have conform that all the values given are same format or not .
if not we have to convert them into one format depending on the answers given to us.
Then it is possible to get the correct answer.
The first answer explanation by Sundar is very good .
First we have conform that all the values given are same format or not .
if not we have to convert them into one format depending on the answers given to us.
Then it is possible to get the correct answer.
The first answer explanation by Sundar is very good .
ARADHANA said:
1 decade ago
The first answer which was given by sunder is best, even a kid can understand it well, well done sunder.
Dheeraj said:
1 decade ago
Nice trick.
Sekhar said:
1 decade ago
The first answer is the best answer
Ashwini said:
1 decade ago
@ Kalimuthu Thanks...I understand your solution.
Geeth said:
1 decade ago
Just now I know the formula for converting meter to feet. Thank you.
Sundar.
Sundar.
Sridhar said:
1 decade ago
Can any one say me about pole in this question?
Aditya said:
1 decade ago
Sonali invests 15% of her monthly salary in insurance policies. She spends 55% of her monthly salary in shopping and on household expenses. She saves the remaining amount of Rs. 12,750. What is Sonali's monthly income?
Jayanthi said:
1 decade ago
Lets take mnthy salry to be x;
then ,
x-15x/100+55x/100=12750;
x-14x/20=12750;
6x/20=12750;
x=(12750)20/6
x=42,5000;
monthly salry is Rs.42,500
then ,
x-15x/100+55x/100=12750;
x-14x/20=12750;
6x/20=12750;
x=(12750)20/6
x=42,5000;
monthly salry is Rs.42,500
Edger said:
1 decade ago
60*5/18 = how to calculate this logic, but I'm clear next step --50/3*9=150---guys please explan this.
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