An aeroplane flies a certain distance at a speed of 720 km/h in 2 hours 30 minutes. How much should its speed be reduced if it has to cover the same distance in 3 hours?
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Answer:
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Step-by-step explanation:
Distance = (240 × 5) = 1200 km.
∴ Required speed = (1200×3/5)
km/hr=720 km/hr
. 240×5= 1200km/per hour.
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