CTS Complete The Series Sample Problems
Dear Reader, Below are 4 easy questions. In each of these questions you have to find a missing number.
Question 1
What number should come at the place of question mark ?
16, 136, 1096, ?
a) 4998 b) 6884 c) 8776 d) none of these
Answer : c) 8776
Solution :
(16 x 8) + 8 = 136
( 136 x 8) + 8 = 1096
(1096 x 8) + 8 = 8776
Question 2
Find the number that should replace the question mark.
4200, 1680, 672, ?
a) 268.8 b) 324.8 c) 242.8 d) 122.8
Answer : a) 268.8
Solution :
4200/2.5 = 1680
1680/2.5 = 672
672/2.5 = 268.8
Question 3
What is the number that will come in the place of question mark?
14, 28, 112, ? , 5376, 53760
a) 448 b) 224 c) 336 d) none of these
Answer : d) none of these.
Solution :
14 x 2 = 28
28 x 4 = 112
112 x 6 = 672
672 x 8 = 5376
5376 x 10 = 53760. Hence answer is d) none of these - in that place 672 should come.
Question 4
Which number should replace question mark?
25, 168, ? , 8176
a) 6176 b) 9176 c) 7776 d) 8176
Answer : d) 8176
Solution :
(25 x 7) - 7 = 168
(168 x 7) - 7 = 1169
(1179 X 7) - 7 = 8176




