(Q4). A missing helicopter is reported to have crashed somewhere in the rectangular region as shown in the figure.What is the probability that it crashed inside the lake shown in the figure ?

Solution :

The Helicopter is equally likely to crash anywhere in the region. Area of the entire region where the helicopter can crash = ( × ) km2 = km2

  Area of the lake = ( × ) km2 = km2

  Therefore P (helicopter crashed in the lake) =
=