Math, asked by exoticbeauty9500, 10 months ago

Aeroplane takes 1 hr less for a journey of 1200 km if it's average speed increases by 100 km/h

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Answered by luckyfortuner

0

Answer:

.: x= -400. or x=300

as speed can not be negative so x= 300 km/hr and new avg speed = x+100 km/hr = 400km/hr

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