7, 10, 8, 11, 9, 12, … What number should come next?
Table of Contents
A. 7
B. 10
C. 12
D. 13
Answer & Solution
Answer: Option B
Solution:
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
Alternate Solution :
Above Series contains two sub series in it
Series 1st = 7, 8, 9, 10
Series 2nd = 10, 11, 12
Above Series contains two sub series in it
Series 1st = 7, 8, 9, 10
Series 2nd = 10, 11, 12
Note : Both sub series is in ascending order. Next number is greater by 1 from the previous one.
Also Read:
- 1, 9, 25, 49, ?, 121.
- 4, 7, 12, 19, 28, ?
- 6, 11, 21, 36, 56, ?
- 10, 100, 200, 310, ?
- 8, 28, 116, 584, ?
- 3, 7, 23, 95, ?
- 7, 26, 63, 124, 215, 342, ?
- 165, 195, 255, 285, 345, ?
- 34, 45, 56, 67, ……. What number should come next?
- Find out the wrong number. 150, 450, 750, 1060,1350,1650,1950
