A) 2
B) \[-\,\,2\]
C) 3
D) \[-\,\,3\]
Correct Answer: B
Solution :
\[\because a,(a-2),3a\]are in AP. \[\Rightarrow \] \[2(a-2)=a+3a\] \[\Rightarrow \] \[2a-4=4a\] \[\Rightarrow \] \[2a=-\,\,4\] \[\therefore \] \[a=-2\]You need to login to perform this action.
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