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 2 of 9.
Neha Ramteke said:
1 decade ago
The series is : 14 28 20 40 32 64
14+6=20
20+12=32
32+24=56
28+12=40
40+24=64
Each time the number doubles
i.e first we add 6
Then double of 6 i.e 12
After that we double 12 i.e 24..
In this way, we can get the answer.
14+6=20
20+12=32
32+24=56
28+12=40
40+24=64
Each time the number doubles
i.e first we add 6
Then double of 6 i.e 12
After that we double 12 i.e 24..
In this way, we can get the answer.
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.
Sushant said:
9 years ago
Check let us take alternate no 14, 20, 32.
First . 14+6 = 20.
20+12= 32.
32+24 = 56.
So answer 56.
First . 14+6 = 20.
20+12= 32.
32+24 = 56.
So answer 56.
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.
Pravesh bansal said:
1 decade ago
If we see odd place of this series then we find every digit is increase by adding table of 6 like
14+6=20
20+12=32 now the ans is
32+18=50
So the right answer is 50.
14+6=20
20+12=32 now the ans is
32+18=50
So the right answer is 50.
Mohammad saqib said:
3 years ago
There is double of ist number and subtracted by 8 which means
14+14=28-8=20,
20+20=40-8=32,
32+32=64-8=56.
Therefore 56, 112 will be the next pair
Therefore 56.
14+14=28-8=20,
20+20=40-8=32,
32+32=64-8=56.
Therefore 56, 112 will be the next pair
Therefore 56.
(8)
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.
Milan said:
5 years ago
14, 28, 20, 40, 32, 64, (56)
14(+6)-->>20.
20(+12)-->>32.
32(+24)-->>56.
28(+12)-->>40.
40(+24)-->>64.
64(+48)-->>112.
14(+6)-->>20.
20(+12)-->>32.
32(+24)-->>56.
28(+12)-->>40.
40(+24)-->>64.
64(+48)-->>112.
Pundrik Vinayak said:
1 decade ago
14 28 20 40 32 64 56 112..
14*2=28 14+6=20 20*2=40 20+(12)=32 32*2=64
32+24=56 56*2=122..........
14*2=28 14+6=20 20*2=40 20+(12)=32 32*2=64
32+24=56 56*2=122..........
Arnab said:
9 years ago
One more solution,
14, 28, 20, 40, 32, 64
It can be add 24 or 18.
14*2 = 28,
14+6 = 20,
20*2 = 40,
20+(6*2) = 32,
32*2 = 64,
Then 32+(6*4) = 56.
14, 28, 20, 40, 32, 64
It can be add 24 or 18.
14*2 = 28,
14+6 = 20,
20*2 = 40,
20+(6*2) = 32,
32*2 = 64,
Then 32+(6*4) = 56.
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