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 18 of 21.
Tony said:
4 years ago
Anyone, please explain from the 2nd Step.
Neelima said:
1 decade ago
60 mins = 1 hr
Then, 30 mins = 1/2 hr.
Then, 30 mins = 1/2 hr.
Ramesh said:
1 decade ago
Can any one explain how 200 will come?
Meron said:
7 years ago
I am not getting this, please explain.
Gayathri said:
5 years ago
Can anyone explain in a simple method?
(1)
Manasi said:
1 decade ago
Awesome @Saravanakgopi.
Thanks dude.
Thanks dude.
Nirmal.s said:
2 decades ago
Am also having de same doubt yaar.
Nitu said:
4 years ago
Thank you everyone for explaining.
(1)
Usha said:
1 decade ago
Please explain how 200 will come?
Aadarsh said:
5 years ago
@Diya.
Good explanation. Thanks.
Good explanation. Thanks.
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