Mathematics, 17.10.2021 06:40, mishcacross21

The distance between two places is 120 km. A car travelling at a certain speed can cover the distance in 2 hours 30 minutes. By how many km/h should the speed of the car be increased for it to take 30 minutes less to cover the distance? Don't spam!!
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The distance between two places is 120 km. A car travelling at a certain speed can cover the distanc...