Consider the following figures: 
What is the missing number?
UPSC - 2011
Consider the following figure and answer the item that follows: 
A square is divided into four rectangles as shown above. The lengths of the sides of rectangles are natural numbers. The areas of two rectangles are indicated in the figure. What is the length of each side of the square?
UPSC - 2011
10
11
15
Cannot be determined as the given data are insufficient
Examine the following statements:
1. None but students are member+B4s are member of the club.
2. Some members of the club are married persons.
3. All married persons are invited for dance.
Which one of the following conclusions can be drawn from the above statements?
UPSC - 2012
All students are invited for dance.
All married students of the club are invited for dance.
All members of the club are married persons.
None of the above conclusions can be drawn.
Directions for the following 3 items given below (Questions 4-6)
Out of four friends A, B, C and D,
A and B play football and cricket,
B and C play cricket and hockey,
A and D play basketball and football,
C and D play hockey and basketball.
Who does not play hockey?
UPSC - 2013
Who plays football, basketball and hockey?
UPSC - 2013
Which game do B, C and D play?
UPSC - 2013
