Question

The area of a square field is 75,625 sq. m. A man cycles along its boundary at 20
km/h. In how much time will he return to the starting point ?​

Answer 1

Area of square= length×length

=75626

length=275

perimeter=4× length

=4×275=1100m=1.1km

speed= 20kmph

time= distance/speed= 1.1/20hr=0.055 hours

=198 second