Question

a bus travels a distance of 75 km in 3 hours at uniform speed . express its speed in km / hr and m / s​

Answer 1

75/3 = 25km/h

25×(8/15) = 13.33m/s

Answer 2

Answer:

Let original speed be v

Now,

v

75

+

v+10

90

=3

⟹

v

25

+

v+10

30

=1

⟹25(v+10)+30v=v(v+10)

⟹v

2

−45v−250=0

⟹(v+5)(v−50)=0

So, v=50 km/hr as speed can't be in negative.