A bag contains 20 balls. 8 balls are green, 7 are white and 5 are red. What is the minimum number of balls that must be picked up from the bag blindfolded (without replacing any of it)to be assured of picking at least one ball of each colour?

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