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Let the speed of the train be x km/h 360/x =>(360/x+5) + 1 =>360(x+5) = (360+x+5)x =>360x+1800 = 360x++5x =>+5x-1800=0 By solving this equation the value of x is 40 Therefore the speed will be 40km/h

gautam, you may use the equation editor in the brainly - answering browser window - the button Pi gives you that. The square symbol is available - if you click the Omega button in that answering window, you will get many symbols. using these you can write more beautiful answers.

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Distance = 360 km Let the speed of the train be u km/h be the time taken to complete the journey be t₁ hr so distance/speed = time so 360/u = t₁ ............ ( i ) 2nd case

the speed of the train (u + 5) km/h so time taken = t₁ - 1 hr

so 360/(u + 5) = t₁ - 1

substituting ( i ) in the equation

⇒

⇒

⇒

⇒ (cancelling the -1)

⇒

⇒

⇒

⇒ (doing the middle term factor)

⇒

⇒

so u = - 45 and 40 so speed can't be negative so the the speed of the train is 40 km/hr