Missing Terms

Find the right number, from the given options, at the place marked by the question mark: 2, 4, 8, 32, 256, ?
This question is related to TCS Interview

aravinthan2k6

• Member Since Dec-2007 | Aug 16th, 2009

Each of the preceding number is multipied by the previous number

So on multiplying 2*2 = 4
4*2 = 8
8*4 = 32
32*8 = 256
256*32 = 8192
so the answer for this series is 8192

• Aug 16th, 2009

Each of the preceding number is multipied by the previous number

So on multiplying 2*2 = 4
4*2 = 8
8*4 = 32
32*8 = 256
256*32 = 8192
so the answer for this series is 8192

• Nov 14th, 2009

The sequence is in form of power of 2 with exp inseries,
1 , 2 , 3=1+2, 5=2+3,8=3+5,so ?= 13=5+8

• Dec 24th, 2009

2*4=8,8*4=32,32*8=256
Hence 256*32=8192

• Jan 3rd, 2010

In the series first consider the two terms 2,4
2*4=8 is the third term

Consider 2nd & 3rd terms 4,8
4*8=32 is the fourth term

Similarly 8*32=256 is the fifth term
Hence sixth term is
32*256=8192

• Jan 18th, 2010

2*4=8
4*8=32
32*8=256
256*32=8192
Ans=8192

• Feb 11th, 2010

Now the series is in the form of

2,2pw(2),2pw(3),2pw(5), 2pw(7) which is a series of all 2 powers of prime and hence the next no should be 2pw(11) which is 1024*2 = 2048

• Sep 23rd, 2010

On looking the series each number is multiple of the before 2 numbers 32*8=256. Similarly 256*32=8192

• Dec 10th, 2010

next no. is multiple of last two no.
so next will b =256*32=8192

archana arya Profile Answers by archana arya

• Dec 22nd, 2010

Missing number is 4096