Question Details

For the sequence provided below, a single number does not follow the correct pattern. Determine the wrong number.

32, 16, 16, 32, 128, 975, 16384

Options

A

975

B

128

C

16

D

32

E

16384

Show Answer

Correct Answer :

Option A

975

Solution :

Correct Answer: 975

To find the wrong number in the given sequence, let us analyze the mathematical relation between each consecutive term:
32, 16, 16, 32, 128, 975, 16384

Let us determine the multiplier used to obtain each subsequent term from the previous one:

First term to second term:
32×0.5=16

Second term to third term:
16×1=16

Third term to fourth term:
16×2=32

Fourth term to fifth term:
32×4=128

Notice the pattern of multipliers: 0.5, 1, 2, 4. Each multiplier is multiplied by 2 (doubled) to get the next multiplier:
0.5×2=1
1×2=2
2×2=4
Following this pattern, the next multiplier must be:
4×2=8

Applying this multiplier to the fifth term (128):
128×8=1024

To verify, the subsequent term using the next multiplier (8×2=16) should be:
1024×16=16384
This perfectly matches the last number in the given sequence.

Therefore, the number 975 is incorrect and should be replaced by 1024.

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