Question

49 a man walking at 3 km/hour crosses a square field diagonally in 2 minutes. the area of the field (in square meter) is:/

Answer 1

the mans speed =5/6 m/s

time taken = 120 seconds

distance covered=100m

diagonal of a square= root 2 (side)^2= 100

area = 100/ root 2

= 100(root2)/2 m^2