Direction: A series is given with one/two term missing. Choose the correct alternative |
A) 21
B) 25
C) 27
D) 33
Correct Answer: B
Solution :
The pattern is \[+\,1,+\,3,+\,6,.....,i.e.\] \[+\,1,(1,+\,2),+(1+2+3),.....\] So, missing term \[=15+(1+2+3+4)=25.\]You need to login to perform this action.
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