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  1. In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is?
    2. A.
    1 hour
    B.
    2 hour
    C.
    3 hour
    D.
    4 hour

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    Answer : Option A

    Explanation :

    Let the duration of the flight be x hours. Then,

    600/x - 600/(x + 1/2) = 200

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