An aeroplane travels 2500 km, 1200 km & 500 km at 500km/hr, 400 km/hr & 250 km/hr. find the average speed
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An aeroplane travels distance = 2500 km
Speed of the aeroplane if it travels distance 2500km = 500 km/hr.
Therefore,
2500
500
= 5
Speed if traveled 1200 km = 400km/hr
Therefore,
1200
400
= 3
Speed if traveled 500km = 250km/hr
Therefore,
500
250
= 2
Add the numbers 5+3+2 = 10
Add the distances = 2500+1200+500 = 4200
Speed = 4200
10
Answer = 420 km/hr
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