Question

a journey of 224km from Imphal to Jiribam takes 12/5hours less by a car than a pessenger bus. if the average speed of the bus is 12 km/hr less then that of the car, find the average speed of the bus and car.​

Answer 1

ans. 224/x-12. -224/x=12/5

= 13440= 12x^2-144x

= 13440-12x^2+144x=0

=(x-40)(x+28)=0

speed of the car =40km/hr

speed of the bus =28km/hr

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