Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 5)
5.
Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?
Answer: Option
Explanation:
Due to stoppages, it covers 9 km less.
| Time taken to cover 9 km = |  |
9 | x 60 |  min |
= 10 min. |
| 54 |
Discussion:
205 comments Page 16 of 21.
Sabbir said:
6 years ago
Travelling difference = 9 km/hr.
Travels 54 km taking 60 mins.
Hence, travels 9 km taking 10 mins.
So, the answer is 10 mins.
Travels 54 km taking 60 mins.
Hence, travels 9 km taking 10 mins.
So, the answer is 10 mins.
Pallavi said:
6 years ago
We have taken 54 because if we take 45, this is the speed of bus with the stoppage, it has already taken the stop that's why 54 is taken.
Bantu Venkatesh said:
6 years ago
54km ------------- 60min
45km ------------- ?????.
45/54*60min = 50min.
60min - 50min = 10min.
45km ------------- ?????.
45/54*60min = 50min.
60min - 50min = 10min.
KArthik said:
6 years ago
Thank you @Kushal.
KArthik said:
6 years ago
Hey guys, for this we can simply use the proportion method;
60min : 54km :: x min : 9km (product of extremes = product of means)
60*9=54x.
x=(60*9)/54 (9 and 54 will be cancelled by 9 tables)
x=60/6 (60 and 6 will be cancelled by 6 tables)
x=10min.
Therefore, the time taken by train is 10 min.
60min : 54km :: x min : 9km (product of extremes = product of means)
60*9=54x.
x=(60*9)/54 (9 and 54 will be cancelled by 9 tables)
x=60/6 (60 and 6 will be cancelled by 6 tables)
x=10min.
Therefore, the time taken by train is 10 min.
Anvi said:
5 years ago
Can anyone tell me the easy method.
Bhavya said:
5 years ago
2 speeds difference is 9 km,
So we should calculate the time taken to cover 9 km.
So, 9/54*60 =?
Then the answer is 10 minutes.
So we should calculate the time taken to cover 9 km.
So, 9/54*60 =?
Then the answer is 10 minutes.
Sravani said:
5 years ago
You were excellent! Thanks, @Jaya and @Kushal.
Kumar said:
5 years ago
I didn't understand, I'm confused about this stoppages can anyone explain in detail?
Chandu said:
5 years ago
Stoppage time = difference of speed/maximum speed.
= 54-45/54 * 60min,
= 9/54 * 60min,
= 1/6 * 60min.
= 10min.
= 54-45/54 * 60min,
= 9/54 * 60min,
= 1/6 * 60min.
= 10min.
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