Questions with Answers: Character Puzzles | CSAT Preparation - UPSC PDF Download

Basics for solution: 
In this type of questions. a figure or a matrix is given in which some numbers are filled according to a rule. A place is left blank. You have to find out a character (a number or a letter) from the given possible answers which may be filled in the blank space.
Some examples are Riven below:
Example 1: 
Which number will replace the question mark?

Solution: 
From fig. a: 6 + 4 + 8 = 18
18 + 2 = 20
From flg. b: 7 + 9 + 8 = 24
24 + 2 = 26
From fig. c: 6 + 5 + 12 = 23
23+2 = 25
Hence the number 25 will replace the question mark.

Example 2: 
Which number will replace the question mark? 

Solution: 
From flg. a: (3)² + (2)² = 13
From fig. b: (4)² + (8), = 80
From fig. c: ? = (1)² + (5)² 
? = 1 + 25
? = 26
Hence the number 26 will replace the question mark.

Example 3: 
Which number will replace the question mark? 

Solution: 
From fig. a: 7 x 6 + 3 = 45
From fig. b: 5 x 4 + 6 = 26
From fig. c: 7 x 3 + 8 = 29
Hence the number 29 will replace the question mark.

Example 4: 
Which number will replace the question mark? 

Solution: 
From fig. a: 9² + 8² + 7² + 6² = 81 +64 + 49 + 36 = 230
From fig. b: 6² + T² + 3² + 4² = 36 + 49 + 9 + 16 = 110
From fig. c: 9²+ 6² + 5² + 4² = 81 + 36 + 25 + 16= 158
Hence the number 158 will replace the question mark.

Example 5: 
Which number will replace the question mark? 

Solution: 
(4+3)² =(7)² =49
(8 + 5)² = (13)² = 169
(11 + 12)² = (23)² = 529
(10 + 9)² = (19)² = 361
Hence the number 361 will replace the questich mark.

Example 6: 
Which number will replace the question mark? 

Solution: 
From column is I: (9 x 5) % 5 = 9
From column II: (17 x 4) % 4 = 17
From column III: (16 x ?) % 8 = 8
16? = 64
? = 4
Hence the number 4 will replace the question mark.

Example 7: 
Which number will replace the question mark? 

Solution: 
(5)² = 25
(6)² = 36
(4)² = 16
(7)² = 49
Hence the number 49 will replace the question mark.