Question

area of a square field is 40000m². a man cycles along its boundary at 20 km/hr how much time he will take to complete one round ?​

Answer 1

Answer:

196s

Step-by-step explanation:

Area =60025 m square

let the length be x

x^2=60025

So x= 245 m

Perimeter=4*x= 980 m

Speed =18 km/h =18*5/18 m/s =5 m/s

Time= distance/speed

=980/5

=196 s

So he will return to the starting point in 196 s

Answer 2

Answer:

It will take him only 144 seconds to complete a round.

Step-by-step explanation:

Area = 40000 sq.m

Side = Root of 40000 = 200m

Perimeter = 2* ( 200 +200) = 800

Speed per second = 5.5555 m/s

Time taken to complete one round = 800 / 5.5555 = 144 seconds