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:
85 comments Page 7 of 9.

Yash said:   10 years ago
14+6=20.
20+8=28.
28+4=32.

32+8=40.
40+8=48.
48+8=56.
56+8=64.

Aarushi said:   4 years ago
14*2 = 28 - 8 = 20,
20*2 = 40 - 8 = 32,
32*2 = 64 - 8 = 56.
(2)

Harpreet kaur said:   1 decade ago
14+14=28.
28-8=20.
20+20=40.
40-8=32.
32+32=64.
64-8=56.

ASAD said:   1 decade ago
14*2=28

28-8=20

20*2=40

40-8=32

32*2=64

64-8=56

Biswajit said:   7 years ago
28-20=8,
40-32=8,
64-8=56,
So, 56 is the right answer.

Bhavana said:   8 years ago
14*2=28.
28-8=20.
20*2=40.
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.

PANKAJ RIYAR said:   1 decade ago
14+14=28
28-8=20
20+20=40
40-8=32
32+32=64
64-8=56

Nima dorji said:   3 years ago
Sir I didn't get it. Can anyone explain once more?
(5)

PERNI .RAMBABU said:   1 decade ago
14
14*2=28
28-8=20
20*2=40
40-8=32
32*2=64
64-8=56


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