Aptitude - Time and Distance - Discussion
Discussion Forum : Time and Distance - General Questions (Q.No. 6)
6.
In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:
Answer: Option
Explanation:
Let the duration of the flight be x hours.
| Then, | 600 | - | 600 | = 200 |
| x | x + (1/2) |
 |
600 | - | 1200 | = 200 |
| x | 2x + 1 |
x(2x + 1) = 3
2x2 + x - 3 = 0
(2x + 3)(x - 1) = 0
x = 1 hr. [neglecting the -ve value of x]
Discussion:
206 comments Page 5 of 21.
Parimalanathan said:
6 years ago
I can't understand this.
(1)
Neeru sharma said:
5 years ago
How come 1/2?
(1)
Patel said:
5 years ago
Here we get x=1, but the question is to find time duration of a plane in bad weather, which is x+0.5 hrs. So the answer must be 1.5hrs. Right?
(1)
Priyanka said:
5 years ago
Can anyone explain in a simple way? please.
(1)
Gayathri said:
5 years ago
Can anyone explain in a simple method?
(1)
Nitu said:
4 years ago
Thank you everyone for explaining.
(1)
Zary said:
2 decades ago
Hi frnds! I'm not getting why you are taking.
600 - 600 = 200.
X x + (1/2) ?
Please explain in detail!
600 - 600 = 200.
X x + (1/2) ?
Please explain in detail!
Nirmal.s said:
2 decades ago
Am also having de same doubt yaar.
Lathesh said:
2 decades ago
Need more detailed explanation.
Sundarraj said:
2 decades ago
Thanks Kiran. Your answer is very easy to grasp.
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