SSC
Quantitative Aptitude
Number System and its Operations
Question Bank
Number Series and Sequences (I)
question_answer
The next number of the sequence 2, 6, 12, 20, 30, 42, 56, ... is
A)60
B)64
C)68
D)72
Correct Answer:
D
Solution :
[d] The given sequence is based on the following pattern \[2+4=6\] \[\Rightarrow \] \[6+6=12\] \[12+8=20\] \[\Rightarrow \] \[20+10=30\] \[30+12=42\] \[\Rightarrow \] \[42+14=56\] \[56+16=\,\,[72]\]