Question

a man cross 800 mtr bridge in 8 mint what is his speed in km/hr?

Answer 1

Answer:

Speed=distance /time

Distance=800m

Time=8min or 8*60=480sec

Therefore

speed = 800/480

=80/48

=40/24

=20/12

=10/6

=5/3

So to convert in km/h

we will multiply it by 18/5

therefore

=5/3 * 18 /5

=6 km/h

hope that helps

Answer 2

Step-by-step explanation:

speed = distance/ time

= 800/8 m/min

= 100 × 1000 km/ 1/60 hr

= 5000/3 km/hr

= 1666.6 km/hr