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Olympiad-Math
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Class 9
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Everyday Mathematics
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Q)
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
( A ) 1 hour
( B ) 3 hour
( C ) 2 hour
( D ) 4 hour
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