SOLUTION: One aeroplane started 30 minutes later than the scheduled time from a place 1500 km away from its destination. To reach.the destination at the scheduled time the pilot had to incre

Question 901186: One aeroplane started 30 minutes later than the scheduled time from a place 1500 km away from its destination. To reach.the destination at the scheduled time the pilot had to increase the speed by 250 km/hr.what was the speed of the aeroplane per hour during the journey?
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39630) (Show Source): You can put this solution on YOUR website!
____________________speed__________time_________distance
NORMAL_______________r______________t___________
LATE________________r+250__________t-1/2________

r is normal speed which was not used;
t is normal time which was not used;
"not used", because the plane was late starting.
Several steps using the system of equations.
Answer by MathTherapy(10557) (Show Source): You can put this solution on YOUR website!

One aeroplane started 30 minutes later than the scheduled time from a place 1500 km away from its destination. To reach.the destination at the scheduled time the pilot had to increase the speed by 250 km/hr.what was the speed of the aeroplane per hour during the journey?

Speed throughout journey: km/h
You can do the check!!
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