Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 2 (Q.No. 7)
Directions to Solve
Look carefully for the pattern, and then choose which pair of numbers comes next.
7.
17 17 34 20 20 31 23
Answer: Option
Explanation:
This is an alternating subtraction series with repetition. There are two different patterns here. In the first, a number repeats itself; then 3 is added to that number to arrive at the next number, which also repeats. This gives the series 17, 17, 20, 20, 23, and so on. Every third number follows a second pattern, in which 3 is subtracted from each number to arrive at the next: 34, 31, 28.
Discussion:
33 comments Page 4 of 4.
Poonam said:
1 decade ago
Can you explain in easy way.
Sundar said:
1 decade ago
Given 17 17 34 20 20 31 23 ....
17 17 - Series 1 [Add 3; 14+3 = 17]
-- 34 - Series 2 [Sub 3; 37-3 = 34]
20 20 - Series 1 [Add 3; 17+4 = 30]
-- 31 - Series 2 [Sub 3; 34-3 = 31]
23 23*
-- 28*
26 26
-- 25
29 29
-- 22
... continued.
The stared text 23*, 28* is the required answer for the given series.
Hope this help you. Have a nice day!
17 17 - Series 1 [Add 3; 14+3 = 17]
-- 34 - Series 2 [Sub 3; 37-3 = 34]
20 20 - Series 1 [Add 3; 17+4 = 30]
-- 31 - Series 2 [Sub 3; 34-3 = 31]
23 23*
-- 28*
26 26
-- 25
29 29
-- 22
... continued.
The stared text 23*, 28* is the required answer for the given series.
Hope this help you. Have a nice day!
Khushi said:
1 decade ago
Please explain in detail.
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