Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 2)
2.
An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1
hours, it must travel at a speed of:
hours, it must travel at a speed of:Answer: Option
Explanation:
Distance = (240 x 5) = 1200 km.
Speed = Distance/Time
Speed = 1200/(5/3) km/hr. [We can write 1 hours as 5/3 hours]
 Required speed = |
 |
1200 x | 3 |  km/hr |
= 720 km/hr. |
| 5 |
Discussion:
163 comments Page 13 of 17.
Bdboy Hasan said:
1 decade ago
Previous time is 5 * 60 = 300 minute and new time is 60 + 40 = 100 minute.
So, we need to increase speed 3 times as our required time is reduced 3 times.
So the speed will be 240 * 3 = 720 kmph.
So, we need to increase speed 3 times as our required time is reduced 3 times.
So the speed will be 240 * 3 = 720 kmph.
Mayur said:
1 decade ago
Why we convert 5/3 into 3/5?
Please tell me.
Please tell me.
Sumit Wanza said:
10 years ago
240 km hour in 5 hours so 240 * 5 = 1200 km total distance.
Distance = 1 + 2/5 = 3/5.
= 1200/1 * 3/5.
= 1200 * 3 = 3600, = 1 * 5 = 5 .
= 3600/5 = 720.
So, the answer is 720 km.
Distance = 1 + 2/5 = 3/5.
= 1200/1 * 3/5.
= 1200 * 3 = 3600, = 1 * 5 = 5 .
= 3600/5 = 720.
So, the answer is 720 km.
Omar Faruq said:
10 years ago
I think the question should be in 1 hour 40 minutes not in 1 hour.
Naresh said:
10 years ago
@Manasa explain is clear please visit it.
Hiyaaa said:
10 years ago
How do you divide 1200 by 5/3? I need a reference.
Vishal said:
10 years ago
Nice explanation thanks @Avinash.
Minerve baruah said:
10 years ago
A car moves a distance of 450 km in 8 hours find its speed?
Solve and explain the answer.
Solve and explain the answer.
Gokul said:
10 years ago
How 5/3 changed into 3/5? Please tell.
Ross said:
10 years ago
Why does the 5/3 change to 3/5?
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