PI Abstract Pattern Series 2 — Questions and Answers
Question 1: A series follows: 2, 6, 18, 54, ___. What comes next?
- 108
- 144
- 162 (Correct answer)
- 180
Correct answer: 162
Each term is multiplied by 3, so 54 × 3 = 162.
Question 2: Shapes alternate: circle, square, triangle, circle, square, ___. What comes next?
- Circle
- Square
- Triangle (Correct answer)
- Diamond
Correct answer: Triangle
The pattern repeats in groups of three: circle, square, triangle.
Question 3: A number series reads: 100, 91, 83, 76, 70, ___. What is the next number?
- 63
- 64
- 65 (Correct answer)
- 66
Correct answer: 65
The differences are -9, -8, -7, -6, -5, so 70 − 5 = 65.
Question 4: In a grid, each row sums to 15. Row 1: 4, 5, 6. Row 2: 3, 7, 5. Row 3: 6, 4, ___. What fills the blank?
- 3
- 4
- 5 (Correct answer)
- 6
Correct answer: 5
Row 3 needs to sum to 15, and 6 + 4 + 5 = 15.
Question 5: A pattern of dots increases: 1, 4, 9, 16, ___. What is next?
- 20
- 24
- 25 (Correct answer)
- 36
Correct answer: 25
These are perfect squares (1², 2², 3², 4²), so the next is 5² = 25.
Question 6: Letters follow: C, F, I, L, ___. What comes next?
- M
- N
- O (Correct answer)
- P
Correct answer: O
Each letter advances by 3 positions in the alphabet, so L + 3 = O.
Question 7: A sequence of figures shows triangles with 1, 3, 6, 10, ___ dots. What is next?
- 12
- 13
- 14
- 15 (Correct answer)
Correct answer: 15
These are triangular numbers; each adds one more than the last increment (add 5), giving 10 + 5 = 15.
PI Abstract Pattern Series 2
A series follows: 2, 6, 18, 54, ___.
What comes next?