Question

a RTC bus travels 200km at uniform speed.if speed had been 10km/h less. it would have taken 1 hour more for the same journey. write suitable quadratic equation for given data in this method you should another 3 examples of same method​

Answer 1

Answer:

x(sq.) + 10x - 2000 = 0

Step-by-step explanation:

let the speed be x

time taken(t) = 200/x .....(1)

from second statement,

time taken (t+1)= 200/(x-10) .....(2)

therefore t = 200/(x-10) - 1

equating time,

200/x = 200/(x-10) - 1

200(x-10)=(200-(x-10))x

200x-2000=190x-x(sq.)

x(sq.) + 10x - 2000 = 0

Hope this would help you

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