Question

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

Answer 1

Answer:

Step-by-step explanation:

Let s1 be x km/hr

t1=360/x hr

s2=x+5 km/hr

t2=360/(x+5) hr

t1-t2=1

360/x-360/(x+5)=1

360[1/x- 1/(x+5)]=1

360[(x+5-x)/x(x+5)]=1

360*5/(x²+5x)=1

1800=x²+5x

x²+5x-1800=0

x²+45x-40x+1800=0

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

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

x=40,-45

x=40 km/hr

Answer 2

Answer:

this is your ans

I hope it helps