1. Look at this series: 80, 10, 70, 15, 60, ... What number should come next?
Answer - Option A
Explanation:
This is an alternating addition and subtraction series. In the first pattern, 10 is subtracted from each number to arrive at the next. In the second, 5 is added to each number to arrive at the next.
2. Look at this series: 2, 6, 18, 54, ... What number should come next?
A. 108
B. 148
C. 162
D. 216
Answer - Option C
Explanation:
This is a simple multiplication series. Each number is 3 times more than the previous number.
3. Look at this series: 2, 4, 6, 8, 10, ... What number should come next?
Answer - Option B
Explanation:
This is a simple addition series. Each number increases by 2.
4. Look at this series: 544, 509, 474, 439, ... What number should come next?
A. 404
B. 414
C. 420
D. 445
Answer - Option A
Explanation:
This is a simple subtraction series. Each number is 35 less than the previous number.
5. Look at this series: 201, 202, 204, 207, ... What number should come next?
A. 105
B. 208
C. 210
D. 211
Answer - Option D
Explanation:
In this addition series, 1 is added to the first number; 2 is added to the second number; 3 is added to the third number; 4 is added to the fourth number; and go on.