A) 32
B) 30
C) 31
D) 29
Correct Answer: B
Solution :
The pattern is a, \[a+d,\text{ }a+2d,\],....... i.e. \[18,18+3,21+3,24+3.......\] \[\therefore \] Missing number \[=27+3=30.\]You need to login to perform this action.
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