Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 6)
Directions to Solve
In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much
6.
Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?
Answer: Option
Explanation:
In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9.
Discussion:
45 comments Page 5 of 5.
Tanweer said:
1 decade ago
21-12 = 9.
21-10 = 11.
21-8 = 13.
21-6 = 15.
21-10 = 11.
21-8 = 13.
21-6 = 15.
Priya said:
2 years ago
Nice, thanks for explaining the answer.
(15)
Oliyad olana said:
3 years ago
Good, thanks everyone for explaining.
(12)
Preeti said:
1 decade ago
9 +2 = 11.
11+2 = 13.
13+2 = 15.
11+2 = 13.
13+2 = 15.
Jyoti sanju gunjikar said:
3 years ago
Thanks so much all explain me.
(13)
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