Question
An airplane flew 7800 km from Country J to Country K at a speed of 780 km/h. It then covered 7100 km from Country K to Country L at a speed of 710 km/h. Find the time taken for the whole journey.
2 m

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An airplane flew 7800 km from Country J to Country K at a speed of 780 km/h. It then covered 7100 km from Country K to Country L at a speed of 710 km/h. Find the time taken for the whole journey.