Aryan0123 and rohithkrhoypuc1 please answer this question I will Mark you brainlist
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Step-by-step explanation:
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Answer:
500 km/h
Step-by-step explanation:
Let the usual speed of plane be x km/h
Increased speed =100km/h
Time taken in 1500km=1500/x h
Time taken to cover destination with increased speed=
1500/x + 100h
A.T.Q
= 1500/x - 1500(x+100)=30/60
=x^2+100x-300000=0
=x^+600x-500x-300000=0
=(x+600)(x-500)
=x=-600, x=500 (But negative sign is not considered in speed)
= x=500km/h
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