Logical Reasoning - Number and Letter Series

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6. 3, 12, 48, ..., 768, 3,072

  • Option : A
  • Explanation : The numbers are multiplied by 4 to get the next number (48 × 4 = 192).
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7. 720, 120, 24, 6, ..., 1

  • Option : B
  • Explanation : 720 divided by 6 = 120
    120 divided by 5 = 24
    24 divided by 4 = 6
    6 divided by 3 = 2
    2 divided by 2 = 1
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8. 32, 48, 72, ..., 162, 243

  • Option : C
  • Explanation : Each number is being multiplied by 3/2 to get the next number.
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9. 1, 4, 9, 16, 25, 36, ..., 64

  • Option : D
  • Explanation : The series is squares of 1, 2, 3, 4 and so on.
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10. 0, 4, 16, 36, 64, ..., 144

  • Option : A
  • Explanation : The series is squares of even numbers, such as 2, 4, 6, 8, 10 and 12. Hence, the answer is 102 = 100.
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