Question

Deepa covers a distance of 27 km in
90 minutes. What is her speed in km/h and
m/s? ​

Answer 1

dist= 27km=27000m

time =90 min=5400 sec

speed, = dist /time

=27000/5400

=270/54

=5m/s

5m/s=5*5/18=25/18km/hr

Answer 2

Step-by-step explanation:

solution

we have

D=27km

t=90 minutes =90/60=3/2sec.

S=D/t

S=27/3/2

=9/2 Km/hr.

in m/sec.

9/2 ×5/18

=5/4 m/sec.