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.
Sruthi said:
8 years ago
31-29=2.
29-24=5.
So diff are 2,5,2,5.
Hence 15 should be the answer to get a difference of 5.
29-24=5.
So diff are 2,5,2,5.
Hence 15 should be the answer to get a difference of 5.
Wozebili said:
1 decade ago
This is quiet different. If the number in sequence is 17, the next number is 3. What is the first number? Please show working.
K.Keerthi Priya said:
10 years ago
Answer is 15 because,
31-2 = 29.
29-5 = 24.
24-2 = 22.
22-5 = 17.
17-2 = 15.
31-2 = 29.
29-5 = 24.
24-2 = 22.
22-5 = 17.
17-2 = 15.
Roshan Roy said:
10 years ago
This is a simple alternating subtraction series, which subtracts 2, then subtract 5.
Anusha said:
9 years ago
31 - 29 = 2
29 - 24 = 5
24 - 22 = 2
22 - 17 = 5
17 - 15 = 2
So, the answer is 15.
29 - 24 = 5
24 - 22 = 2
22 - 17 = 5
17 - 15 = 2
So, the answer is 15.
Raju.u said:
9 years ago
Take alternatively.
31 - 2 = 29
24 - 2= 22
17 - 2 = 15
So next number is 15.
31 - 2 = 29
24 - 2= 22
17 - 2 = 15
So next number is 15.
Jhansi said:
9 years ago
31 - 29 = 2.
29 - 24 = 5.
24 - 22 = 2.
22 - 17 = 5.
17 - 15 = 2.
So, 15 is the correct answer.
29 - 24 = 5.
24 - 22 = 2.
22 - 17 = 5.
17 - 15 = 2.
So, 15 is the correct answer.
M.RAGHURAM PGDM 1 said:
9 years ago
Taking difference 2 and 5 alternatively. So the answer is 15.
Prathyusha said:
1 decade ago
31-2=29
24-2=22
17-2=15
15 is answer
24-2=22
17-2=15
15 is answer
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