1. Which number should come next in this series?
25,24,22,19,15
A. 4
B. 5
C. 10
D. 14
B. 5
C. 10
D. 14
Correct answer: C
Explanation: The pattern decreases progressively: -1, -2, -3, -4, -5
Explanation: The pattern decreases progressively: -1, -2, -3, -4, -5
2. Which number should come next in this series?
3,5,8,13,21,
A. 4
B. 21
C. 31
D. 34
B. 21
C. 31
D. 34
Correct answer: D
Explanation: 3+5=8, 5+8=13 and so on.
Explanation: 3+5=8, 5+8=13 and so on.
3. Which number should replace the question mark?
 
| 17 | 8 | 5 | 5 | 
| 13 | 7 | 5 | 4 | 
| 6 | 12 | 6 | 3 | 
| 10 | 6 | 4 | ? | 
A. 4
B. 5
C. 6
D. 7
Correct answer: A
(For each row the sum of the first two columns is equal to the multiple of the last two columns)
4. Which number should replace the question mark?
 
| 8 | 5 | 21 | 
| 35 | 32 | 12 | 
| 32 | 28 | 31 | 
| 4 | ? | 28 | 
A. 3
B. -2
C. -6
D. 48
B. -2
C. -6
D. 48
Correct answer: C