<PRE><B>Question 770366</B>
An aeroplane descended 150m from an altitude of 650 m and than ascended 830m immediately. At what altitude was the aeroplane flying?
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650 - 150 = 500 m
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Then,
500 + 850 = 1350 m
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PS  Planes don&#39;t use meters for altitude, even in countries that use the metric system.
And every control tower and ATC (Air Traffic Control) speaks English.
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You never outgrow your need for useless facts.
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