Question

Usha walked a distance of 3.5km in 15 mnt .What was her speed in km per hour?​

Answer 1

Step-by-step explanation:

3500 m

15 min

speed = d/t

= 3500/15

=700/3

hope it helps you

Answer 2

Answer:

14km/h

Step-by-step explanation:

Speed = Distance / Time

= 3.5 km to m

15 min to seconds

= 3.5 × 1000 / 15 × 60

= 3500 / 900

= 35/9 m/s

Converting m/s to kmph

Multiply with 18 / 5

= 35/9 × 18/5

= 14 kmph