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:
160 comments Page 11 of 16.
Manoj said:
1 decade ago
Please explain the second line.
Nisha said:
1 decade ago
Why 1 hr is 5/3 solve please in easy way.
Michi tara said:
1 decade ago
How 1hr is written as 5/3 please explain me?
Rashmi said:
1 decade ago
Hi it's not 1 hr. The question is very clear. It is 1 2/3 hrs.
1 2/3 is in mixed fraction. To know more about converting mixed fraction you have @Mona's reply in the forum.
1 2/3 is in mixed fraction. To know more about converting mixed fraction you have @Mona's reply in the forum.
Vaibhav said:
1 decade ago
When distance is same. At that time use the following formula.
v1t1= v2t2.
We have:
v1=240.
t1=5.
t2=5/3.
Therefore we easily find out v2 =720.
v1t1= v2t2.
We have:
v1=240.
t1=5.
t2=5/3.
Therefore we easily find out v2 =720.
Vaibhav said:
1 decade ago
Use the simple formula to solve such type example.
v1t1 = v2t2t.
v1t1 = v2t2t.
Vignesh said:
1 decade ago
Friends problem is in question sometime it shows 1 hrs and sometimes 1 2/3 hrs.
Chandra Bhushan said:
1 decade ago
An aeroplane leaves late by 30 minutes. It has to cover a distance of 1200Km. The pilot has to increase its speed by 200Km/Hr to reach its destination on time. Find out the original speed of the aeroplane.
Julius said:
1 decade ago
I got the point of 5/3 but I don't get how it becomes 3/5?
Aishu said:
1 decade ago
Exactly even I dint get how 3/5 can anyone tell?
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