1. A left for city X from city Y at 6.00 AM. She travelled at a speed of 50 km/hr for 1 hour 12 minutes. After that, the speed was reduced to 30 km/hr. If the distance between the 2 cities is 120 km, at what time A reach city X?
2. An aeroplane covers a certain distance at a speed of 320 km/hr in 2 hours. To cover the same distance in 1(1/2) hours, it must travel at a speed of:
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