The speed of the bus going from Islamabad to Murree was 100 km/h, while the speed of the bus was 130 km/h when coming back from Murree to Islamabad. What was the average speed of is whole journey?
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The speed of the bus going from Islamabad to Murree was 100 km/h, while the speed of the bus was 130 km/h when coming back from Murree to Islamabad. What was the average speed of is whole journey 200 km/h.