Question

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8. A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it
have taken 1 hour less for the same journey. Find the speed of the train.​

Answer 1

Answer:

Let the speed of the train be x km/h.

then time taken by it to travel 360 km = 360 /x hrs.

if the had been 5km/h more , then time taken by it= 360/x+5 hrs.

According to the question ...

Step-by-step explanation:

360/x - 360/ x+5= 1

360x+1800-360x/x²+5x=1

x²+5x-1800=0

x²+45x-40x-1800=0

x(x+45)-40(x+45)=0

(x+45) (x-40) =0

x = -45,40

so , the speed of the train is 40km/h

Answer 2

Step-by-step explanation:

here, let the speed be x.

refer to the attachment for the answer

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