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Mathematics, 26.12.2020 14:10 james8781

Three towns are located on the earth's surface at the following coordinates :P(60°N,35°W),Q(75°N,145°E),R(60°N, 25°E). A commercial airliner A whose speed is600km/h flies from p to q using the shortest route possible . A similar airliner B takes off from P at the same time as A and flies to town R along the parellel of latitude. Both air lines fly at the same speed. Giving your answer to the nearest minute ,determine which airliner arrives at its destination earlier and by how long. Use radius of the Earth as 6370km(ans is airline B ,2h 47min could you please show me the working )

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Three towns are located on the earth's surface at the following coordinates :P(60°N,35°W),Q(75°N,145...
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