oy started cycling along the boundaries of a square field from corner point A. After half an hour he reached the corner point C, diagonally opposite to A. If his speed was 8km/hr, the area of the filed in square km is? Pick.
A) 64 B) 4 C) 16 D) 9 E) 5
Explanation :   Distance covered by Roy in 1/2hr = 4 kmTherefore, side of the square =4/2= 
<gadget id="calculator">4/2</gadget>
<output>2</output>
2 kmHence, Area=2×2= 4 square km   Answer : 4
<result>B</result>
oy started cycling along the boundaries of a square field from corner point A. After half an hour he reached the corner point C, diagonally opposite to A. If his speed was 8km/hr, the area of the filed in square km is?