Question

the area of a square field is 60025 m square A mam cycles along its boundry at 18 km /hour . in how much time will he return to the starting points

Answer 1

solution

area of square = side^2

=> side^2= 60025[given]

=> side ^2= 245^2m

=> side= 245m

now,perimeter = 4*245= 980m

change 980m in km= 980/1000= 98/100km

Now,time taken= 98/100*1/18 =0.05 hour.

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