Question

Area of squre field is 60025 square meter.a man cycles along its boundary at 18 km/hour.in how much time will he return to the starting point

Answer 1

Area of the field=

We know the formula

(for a square).

⇒60025=side²

⇒side=√60025

⇒side=+245 m or - 245 m.

Neglecting -ve value side=245 m.

⇒Perimeter=4*Side(For a square)

⇒P=245*4 m (Which is also the total distance)

⇒Speed= 18 km/h

⇒18 km/h=18* m/s=5 m/s.

⇒Time=

⇒

=49*4 seconds

 =196 seconds.

Ans:The required time is 196 second

Answer 2

Area of field is 60025mt²
So by long division method we get the side 245mt
Now we have to find out the perimeter of square field =4*side
=4*245
=980mt
1km =1000mt
1/1000km=1mt
Perimt =980/1000km
Speed =18km/h
S=d/t
=18km/h=980/1000km
T=980km/1000*18km/hr
=980hr/1000*18
=49hr /100*9
=1hr =3600sec
T=49*3600sec /9*100
T=49*4sec
T=196sec
T=3min 16 sec is the answer I hope you understand it nicely