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Question

What comes in place of question mark (?) in the following number series ?
4, 12, 36, 108, 324, ?

This question was previously asked in
UPSSSC PET 2025 Question Paper (07-Sep-2025) (Shift-2)
The correct answer is
972

Each term is the previous multiplied by 3: 4 × 3 = 12, 12 × 3 = 36, 36 × 3 = 108, 108 × 3 = 324, 324 × 3 = 972.

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Similar Questions

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Important Questions from Number System (Notes)

  1. The sum of the digits of a 2-digit number is 12. When the digits of the number are interchanged, the number becomes 15 more than twice the original number. The original number is:
  2. What is the least number which, when divided by 7, 12 and 15 leaves 1 as the remainder in each case?
  3. Three-digit numbers are formed of the form "abc" where all the digits a, b and c are different and b = a + c. Total number of such possible three-digit numbers is
  4. The sum of the digits of a two-digit number is 10. If 18 is subtracted from it, the digits in the resulting number will be equal. The number is :
  5. A 6-digit number has digits as consecutive natural numbers. The number is always divisible by :
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