By signing in you confirm you are 18 or older, or have your parent’s or guardian’s consent.

CTET 8 Feb 2026 Paper 1, Question 49

Topic: Patterns

Q49

The missing number in the pattern 325, 259, 204, 160, 127, 105 __________ is :

  1. (1) 96
  2. (2) 98
  3. (3) 94Correct answer
  4. (4) 90

Solution.

CBSE answer: (3)

Answer: (3) 94

  1. Differences: 325−259=66325-259=66, 259−204=55259-204=55, 204−160=44204-160=44, 160−127=33160-127=33, 127−105=22127-105=22.
  2. The differences fall by 11 each time, so the next difference is 11.
  3. Next number =105−11=94= 105 - 11 = 94.

Trap: (1) 96 comes from subtracting 9 instead of 11.