f the area ol two Sal ulalgies are equal, prove thal tiey die con118. – InterviewSolution

1.	f the area ol two Sal ulalgies are equal, prove thal tiey die con118. A plane left 30 minutes late than its scheduled time and in order to reach the destination 1500 km awayin time, it had to increase its speed by 100 km/h from the usual speed. Find its usual speed.
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