2 : 11 : : 3 : ?
A30
B45
C33
D31
Answer:
A. 30
Read Explanation:
The answer is 30.
This is based on the logic of n3+n.
The Logic:
In the first pair (2:11):
23+3=8+3=11 (Cubing the number and adding 3)
Applying a consistent pattern for the second pair (3:?):
33+3=27+3=30
