Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 10)
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
10.
Look at this series: 31, 29, 24, 22, 17, ... What number should come next?
Answer: Option
Explanation:
This is a simple alternating subtraction series, which subtracts 2, then 5.
Discussion:
39 comments Page 4 of 4.
Jyotiranjan said:
4 years ago
31 - 2 = 29,
29 - 5 = 24,
24 - 2 = 22,
22 - 5 = 17,
17 - 2 = 15.
29 - 5 = 24,
24 - 2 = 22,
22 - 5 = 17,
17 - 2 = 15.
(2)
Rupesh Kumar Yadav said:
3 years ago
Here,
31-2 = 29,
29-5 = 24,
24-2 = 22,
22-5 = 17.
So, 17 - 2 = 15 => The Answer.
31-2 = 29,
29-5 = 24,
24-2 = 22,
22-5 = 17.
So, 17 - 2 = 15 => The Answer.
(3)
Palwasha said:
3 years ago
Thanks all for explaining the answer.
Guruvinoth said:
3 years ago
It's very useful. Thanks.
(2)
Balasubramanyamraju said:
3 years ago
31 - 2 = 29,
29 - 5 = 24,
24 - 2 = 22,
22 - 5 = 17,
17 - 2 = 15.
29 - 5 = 24,
24 - 2 = 22,
22 - 5 = 17,
17 - 2 = 15.
(16)
Shibo said:
2 years ago
I took just like this;
31 -24 = 7.
29-22 = 7.
So we had a common number 7 for the next series.
24 - 7 = 17.
22 - 7 = 15.
31 -24 = 7.
29-22 = 7.
So we had a common number 7 for the next series.
24 - 7 = 17.
22 - 7 = 15.
(4)
Amrish said:
1 year ago
Thank you all for explaining the answer.
(3)
LUNA said:
1 year ago
So as per my analysis, the sequence of the numbers is;
31-29 = -2,
29-24 = -5,
24-22 = -2,
22-17 = -5,
17-15 = -2.
31-29 = -2,
29-24 = -5,
24-22 = -2,
22-17 = -5,
17-15 = -2.
(4)
Neethu said:
8 months ago
50 - 13 = 40.
40 - 13 = 27.
27 - 13 = 14.
40 - 13 = 27.
27 - 13 = 14.
(2)
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