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A Plane left 30 minutes late than its scheduled time and in order to reach of destination 1500 km away in time. it had to increase its

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A Plane left 30 minutes late than its scheduled time and in order to reach of destination 1500 km away in time. it had to increase its speed by 100 km/h from the usual speed. Find its usual speed.

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Let the speed of plane be x km/hr

Time taken to cover 1500 km

Time taken to cover 1500 km

When speed increased 100 km/hr

.'. speed of the plane = 500 km/hr

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