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?
52
56
96
128
Answer: Option
Explanation:
This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8.
Discussion:
86 comments Page 6 of 9.

Tirtha Datta said:   5 years ago
14 * 2 = 28,
(14 + 6) * 2 = 40,
(20 + 12) * 2 = 64,
(32 + 24) * 2 = 122.
(1)

Nitish Pandey said:   8 years ago
I think the answer must be 128.

14*2=28.
20*2=40.
32*2=64.
64*2=128.

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.

PRIYANKA FEGDE said:   3 years ago
Alternately 14, 20, 32, 56.
14 + 6 = 20.
20 + 12 = 32.
32 + 24 = 56.
(15)

Nikhila said:   1 decade ago
Ya its ok with procedure. But why should we take the nums 2 and 8?

Ajay said:   10 years ago
14*2 = 28.
28-8 = 20.
20*2 = 40.
40-8 = 32.
32*2 = 64.
64-8 = 56.

Rutvij said:   1 decade ago
50 is also a Right answer. This Series follows multiple patterns!

Ladani Namrata said:   10 years ago
My Answer = 56.

14 + 6 = 20,
20 + (6*2) = 32.
32 + (12*2) = 56.

Jhansi said:   9 years ago
The alternative numbers are Multiplied by 2 and subtract from 8.

Sangita said:   10 years ago
My answer is 128.

14*2 = 28.
20*2 = 40.
32*2 = 64.
64*2 = 128.


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