Question

I an old man walks 1 km 20m
in 20 minutes find his speed
in km/no​

Answer 1

At first we have to convert km into metres

1km=1000metres.

+20 meters

= 1020 meters.

Total Time Duration=20mins

20×60 ( converted min into seconds

1min= 60 sec.)

= 120.

Now,

speed= Distance. = 1020

÷. ÷

Time. 120

= 8.5km

Therefore, an old man's speed will be 8.5km/20min. while he walks 1km20min