The flight was to leave at 1600 hours. It was delayed by 3 hour 20
minutes. At what time did it leave?
Answers
Answered by
1
Answer:
1920 hours it will leave
Answered by
0
Answer:
Let the original speed be = x km / hr
we know that : time =speeddistance
As all the things are in hours (unit) we need to correct time in hours unit.
6040=32 hours
According to the question, x1600−x+4001600=32
(x)(x+400)1600x.640000−1600x×32
1920000=2x2+800x
2x2+800x−1920000=0
2(x2+400x−960000)=0
x2+400x−960000=0/2
x2+400x−960000=0
x2+1200x−800x−960000=0
x(x+1200)−800(x+1200)=0
(x−800)(x+1200)=0
x=80
Similar questions