Question

a car travels 360 km with uniform speed.If the speed was 6 km/h less the time taken to cover the same distance would be 2 hours more.Find speed and time​

Answer 1

Explanation:

let the speed of car previously be xkm/hr

the time taken be y hrs

distance=s×t

360=x×y

360/y=x

Now,

new speed of car=x-6 km/hr

new time taken=y+2 hrs

distance=(x+6)(y+2)

=xy+2x+6y+12

A/Q

x×y=xy+2x+6y+12

0=2x+2y+12

0=2×360/y+6y+12

0=720/y+6y+12

0=720+6y^2+12y/y

After that factorize it and then put the value of y in any equation then the value of x will be found