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:
85 comments Page 3 of 9.
Rama chandta said:
7 years ago
14 * 2= 28 , 28-8 = 20 , 20 * 2 = 40,
40-8= 32 , 32*2 = 64 , 64-8 = 56.
40-8= 32 , 32*2 = 64 , 64-8 = 56.
Sneha said:
7 years ago
14 * 2 = 28,
20 * 2 = 40,
32 * 2 = 64,
64 * 2 = 128.
20 * 2 = 40,
32 * 2 = 64,
64 * 2 = 128.
Mustafa said:
7 years ago
14+ (14) , 28, (28-8) =20, 20+ (20) , 40, (40-8) =32, 32+ (32) , 64, (64-8) =56.
This is the right answer.
This is the right answer.
Biswajit said:
7 years ago
28-20=8,
40-32=8,
64-8=56,
So, 56 is the right answer.
40-32=8,
64-8=56,
So, 56 is the right answer.
Ekta said:
7 years ago
It ca be like that,
14*2 = 28
20*2= 40
32*2= 64.
Then the difference between 14and 20 6,
Then between 32 and 20 12,
Then now 18 should be added to 32 then it will be 50.
14*2 = 28
20*2= 40
32*2= 64.
Then the difference between 14and 20 6,
Then between 32 and 20 12,
Then now 18 should be added to 32 then it will be 50.
G.lokesh said:
8 years ago
14*2=28
20*2=40
32*2=64
64*2=128 I think 128 also the correct answer.
20*2=40
32*2=64
64*2=128 I think 128 also the correct answer.
Nikhilaadarsa said:
8 years ago
Why 128 is not an answer? I still can't understand. Can someone explain this to me?
Vishal said:
8 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.
KARTHICKRAJA said:
8 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.
Raj said:
8 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?
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