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 4 of 9.
Suraj said:
1 decade ago
14, 28(14*2), 20(14+6), 40(28+12), 32(20+12), 64(40+24), 56(32+24) + (24*2)112
Suman sundar said:
1 decade ago
14*(2)28 - (8)20*(2)40 - (8)32*(2)64 - (8)56.
Gideon Brian said:
1 decade ago
I have this question: A series has 17 numbers, if the second is 3, what is the fast number?
Chalin said:
1 decade ago
14+14=28.
And then subtract 28-8=20.
20+20=40.
And subtract.
40-8=32.
And add above number.
32+32=64.
And now subtract.
64-8=56.
You get the answer 56.
And then subtract 28-8=20.
20+20=40.
And subtract.
40-8=32.
And add above number.
32+32=64.
And now subtract.
64-8=56.
You get the answer 56.
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.
20+8=28.
28+4=32.
32+8=40.
40+8=48.
48+8=56.
56+8=64.
Subhankar said:
10 years ago
First number*2 = Second number.
Second number-8 = Third number.
14*2=28.
28-8=20.
20*2=40.
40-8=32.
32*2=64.
64-8=56.
Second number-8 = Third number.
14*2=28.
28-8=20.
20*2=40.
40-8=32.
32*2=64.
64-8=56.
Ram Karthick said:
10 years ago
1st no + with same = (Answer - 8).
14, 28 (14+14), (28-8) 20, 40 (20+20), (40-8) 32, 64 (32+32) = 56 (64-8).
14, 28 (14+14), (28-8) 20, 40 (20+20), (40-8) 32, 64 (32+32) = 56 (64-8).
Chanakya said:
10 years ago
14, 20, 32.
14 + 6 = 20.
(6 + 6 = 12) 20 + 12 = 32.
(12 + 12 = 24) 32 + 24 = 56.
14 + 6 = 20.
(6 + 6 = 12) 20 + 12 = 32.
(12 + 12 = 24) 32 + 24 = 56.
Roshan Roy said:
10 years ago
This is an multiplication and subtracting series: First, multiply by 2 and then subtract 8.
Roshan Roy said:
9 years ago
The formula is first multiply by 2 then subtract by 8 :
14 x 2 = 28.
28 - 8 = 20.
20 x 2 = 40.
40 - 8 = 32.
32 x 2 = 64.
Since 64 - 8 = 56.
Therefore the answer is B. 56.
14 x 2 = 28.
28 - 8 = 20.
20 x 2 = 40.
40 - 8 = 32.
32 x 2 = 64.
Since 64 - 8 = 56.
Therefore the answer is B. 56.
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