Question

An aeroplane travels 2500 km, 1200 km & 500 km at 500km/hr, 400 km/hr & 250 km/hr. find the average speed

Answer 1

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Answer 2

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