Question

The area of a square field is 576 km^2 . How long will it take for a horse to run around it at the speed of 12 km/h ?

Answer 1

Let side of Square be a.

So, a^2 = 576 km

     a = 24 km

Hence, Perimeter of Square field = 4a = 24(4) = 96 km

hence, Horse has to run 96 km

      and speed = 12 km/hr

Hence, Time taken = 96/12 = 8 hours