Question
Find the missing number?

A. 215
B. 343
C. 216
D. 342
Answer: A
Solution:
Pattern is that each number is of the form N3 – 1.
N= 3 which gives 33 – 1= 26
N= 4 which gives 43 – 1= 63
N= 5 which gives 53 – 1= 124
Hence answer would be N= 6
which gives 63 – 1= 215