Question
What number should replace the question mark?
1, 4, 13, 40, 121, ?
A. 134
B. 234
C. 364
D. 264
Answer: C
Solution:
The sequence is × 3 + 1
What number should replace the question mark?
1, 4, 13, 40, 121, ?
A. 134
B. 234
C. 364
D. 264
Answer: C
Solution:
The sequence is × 3 + 1