Clearly from statements (1) and (2), figure 1 follows; from statement (3), figure 2 follows; from statement (4), figure 3 follows; and from statement (5), figure 4 follows; and from statements (6) and (7), figure 5 follows.


Clearly, seeing in figure in Q. 50, we find that if E and B are ½ km apart, there is a possibility that E coincides with C.