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:
162 comments Page 17 of 17.
Haroon Baloch said:
2 months ago
First, we need to find the distance covered by the plane.
Distance = Speed × Time
= 240 kmph × 5 hours = 1200 km.
Now, we want the plane to cover 1200 km in 1^2/3 hours (or 5/3 hours).
New Speed = Distance/Time = 1200 km /(5/3) hours = 1200 × 3/5 = 720 kmph.
So, the plane must travel at 720 kmph.
Distance = Speed × Time
= 240 kmph × 5 hours = 1200 km.
Now, we want the plane to cover 1200 km in 1^2/3 hours (or 5/3 hours).
New Speed = Distance/Time = 1200 km /(5/3) hours = 1200 × 3/5 = 720 kmph.
So, the plane must travel at 720 kmph.
(2)
Mohammed Yahiya Khan said:
1 month ago
Very good to learn and understand the solution.
(1)
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