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 2 of 17.
Arbaz said:
1 year ago
1 2/3 is a mixed fraction, it has to be converted into an improper fraction
The formula to convert mixed fraction to improper fraction is Quotient * divisor + remainder/divisor.
In the above mixed fraction quotient=1, remainder= 2, divisor=3.
Therefore 1 * 3 + 2/3 = 5/3.
The formula to convert mixed fraction to improper fraction is Quotient * divisor + remainder/divisor.
In the above mixed fraction quotient=1, remainder= 2, divisor=3.
Therefore 1 * 3 + 2/3 = 5/3.
(19)
Elester Miranda said:
2 years ago
1(2/3)= 100 mins (1hr = 60, (2/3) = 60×2/3= 40 , 60+40=100 mins).
5hr = 300 mins.
So, 300/100 = 3 (to cover the distance).
5hr = 240.
Therefore, 240 × 3 = 720.
5hr = 300 mins.
So, 300/100 = 3 (to cover the distance).
5hr = 240.
Therefore, 240 × 3 = 720.
(17)
Ssewajje Debbie said:
2 years ago
But how does 5/3 turn to 3/5? Please explain.
(15)
Majji deepika said:
7 months ago
Given data:
Speed = 240km/hr.
t = 5hr.
By the way, to cover the same distance in another time t1 = 5/3.
Speed = distance/time.
dis = speed * time
dis = 240 * 5
dis = 1200km.
Speed = dis/time.
Speed = 1200/(5/3).
Speed = 3600/5 = 720km/hr.
Speed = 240km/hr.
t = 5hr.
By the way, to cover the same distance in another time t1 = 5/3.
Speed = distance/time.
dis = speed * time
dis = 240 * 5
dis = 1200km.
Speed = dis/time.
Speed = 1200/(5/3).
Speed = 3600/5 = 720km/hr.
(15)
Jeswin said:
2 years ago
Please Explain how and why the reciprocal became 5/3 to 3/5. Someone, could you explain it?
(14)
Sonaram bobonga said:
1 year ago
Anybody explain to me how 5/3 became 3/5?
(14)
Ajith said:
6 months ago
So many people is asking 1 2/3 becomes 5/3.
Here is the explanation.
1 2/3 is a mixed fraction so we converted it into an improper fraction.
1 2/3 3 comes to the left side, so it becomes.
1*3 +2/3 = 5/3.
Here is the explanation.
1 2/3 is a mixed fraction so we converted it into an improper fraction.
1 2/3 3 comes to the left side, so it becomes.
1*3 +2/3 = 5/3.
(14)
Shivi said:
4 years ago
How to simplify 1200 (5/3) ? Please explain.
(13)
Chandra sekhar said:
2 years ago
How 1200/5/3 became 1200/3/5? Please Explain me.
(13)
Lath ... said:
4 years ago
Speed 1=240kmph, time1 = 5hr.
Speed2=x. Time2=5/3.
S1/S2 = T2/T1,
S2 = (240*5)/(5/3),
S2 = 240*3,
S2 = 720kmph.
Speed2=x. Time2=5/3.
S1/S2 = T2/T1,
S2 = (240*5)/(5/3),
S2 = 240*3,
S2 = 720kmph.
(12)
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