Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 1 (Q.No. 12)
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
12.
Look at this series: 14, 28, 20, 40, 32, 64, ... What number should come next?
Answer: Option
Explanation:
This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8.
Discussion:
87 comments Page 3 of 9.
Arundhati biswas said:
10 years ago
14 * 2 = 28,
20 * 2 = 40,
32 * 2 = 64,
20 - 14 =6 and 32 - 20 = 12,
6 * 2 = 12,
12 * 2 = 24,
So that 32 + 24 = 56(answer).
20 * 2 = 40,
32 * 2 = 64,
20 - 14 =6 and 32 - 20 = 12,
6 * 2 = 12,
12 * 2 = 24,
So that 32 + 24 = 56(answer).
Ramya said:
10 years ago
I think 50 also the answer. But it's not there in this options.
Pradeep said:
9 years ago
I think Correct answer is 128 because its in option and simple way. All the examination allows the write answer guys. It may possible all the four option may be the correct answer. The marks is given due to because. 1 problem can have many solutions.
Nitish Pandey said:
9 years ago
I think the answer must be 128.
14*2=28.
20*2=40.
32*2=64.
64*2=128.
14*2=28.
20*2=40.
32*2=64.
64*2=128.
Bhavana said:
9 years ago
14*2=28.
28-8=20.
20*2=40.
40-8=32.
32*2=64.
64-8=56.
28-8=20.
20*2=40.
40-8=32.
32*2=64.
64-8=56.
ASWATH G said:
9 years ago
Answer is 56 only. I agree.
Raj said:
9 years ago
@Aswath.
Why 50 is not an answer? I still can't understand. Can someone explain this to me?
Why 50 is not an answer? I still can't understand. Can someone explain this to me?
KARTHICKRAJA said:
9 years ago
14 28 - Difference is 8 (28-8=20)
20 40 - Difference is 8 (40-8=32)
32 64 - Difference is 8 (64-8=56)
So, 56.
20 40 - Difference is 8 (40-8=32)
32 64 - Difference is 8 (64-8=56)
So, 56.
Nikhilaadarsa said:
9 years ago
Why 128 is not an answer? I still can't understand. Can someone explain this to me?
Vishal said:
9 years ago
I calculated 50 the next term. It is not matched. It is too difficult when a series has multiple answers.
14 - 20 - 32 - 50.
6 12 18.
14 - 20 - 32 - 50.
6 12 18.
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