How many possible values of (p + q + r) are there satisfying 1/p + 1/q + 1/r = 1 where p, q and r are natural numbers (not necessarily distinct)?

Consider the following figures: In the figures (I) to (VI) above, some parts are shown…

Consider the figures given below To fit the question mark, the correct answer is:

Study the graph and answer the  item given below.

Cynthia’s knees were quaking because

The author prefers government as the umpire and private sector as players because