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 identify the wrong number in the sequence, let us analyze the mathematical relationship and pattern between consecutive terms:

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

Let us look at how each term is obtained from the preceding term:

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 in the multipliers used: 0.5, 1, 2, 4. Each multiplier is double the previous multiplier (0.5×2=1, 1×2=2, 2×2=4).

Following this pattern, the next multiplier should be:
4×2=8

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

To confirm the pattern for the final term, the next multiplier after 8 should be:
8×2=16

Multiplying 1024 by 16 gives:
1024×16=16384

This matches the final number in the sequence (16384). Therefore, the number 975 is incorrect and should be replaced by 1024.

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