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Directions (1-4): What should come in place of the question mark (?) in following number series problems?
81,54,72,144,384,?
  • a)
    1280
  • b)
    1898
  • c)
    1389
  • d)
    1190
  • e)
    1492
Correct answer is option 'A'. Can you explain this answer?
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Directions (1-4): What should come in place of the question mark (?) i...
Pattern Identification:
- The given series follows a pattern where each number is derived from the previous numbers.

Calculating the Pattern:
- 81 = 54 x 1.5
- 72 = 54 x 1.333
- 144 = 72 x 2
- 384 = 144 x 2.666

Applying the Pattern:
- To find the next number, we will continue the pattern by multiplying the last number by the next factor in the sequence.

Calculating the Next Number:
- 384 x 3.2 = 1228.8 ≈ 1280
Therefore, the next number in the series after 384 is 1280.
So, the correct answer is option 'A) 1280'.
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Directions (1-4): What should come in place of the question mark (?) in following number series problems?81,54,72,144,384,?a)1280b)1898c)1389d)1190e)1492Correct answer is option 'A'. Can you explain this answer?
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