Question
An airplane flew 7200 km from Country W to Country X at a speed of 800 km/h. It then covered 15390 km from Country X to Country Y at a speed of 810 km/h. Find the time taken for the whole journey.
2 m

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An airplane flew 7200 km from Country W to Country X at a speed of 800 km/h. It then covered 15390 km from Country X to Country Y at a speed of 810 km/h. Find the time taken for the whole journey.