Arya starts cycling along the boundaries of the squares. She starts from a point A and after 90 minutes she reached to point C diagonally opposite to A. If she is travelling with 30km/hr, then find the area of square field.  Choose one.
A) 125  B) 225  C) 325  D) 425  E) None of these
Explanation :   D = 30*3/2= 
<gadget id="calculator">30*3/2</gadget>
<output>45</output>
45 km. So side of square is 22.5km, so area – 506.25km^2   Answer – None of these
<result>E</result>
Arya starts cycling along the boundaries of the squares. She starts from a point A and after 90 minutes she reached to point C diagonally opposite to A. If she is travelling with 30km/hr, then find the area of square field.