Question

an aeroplane left 30 minutes later than its actual time and in order to reach it destinations 1500 km away in time it had to increases its speed by 250 km per hour from it used speed determine at usual speed




please

Answer 1

Let the usual speed be x km per hour.

Then, according to the question,

1500/x - (30/60) = 1500/(x+250)

On solving , we get

x = 750 km per hour

Answer 2

x is equal to 750 km per hour