A) 9
B) 11
C) 10
D) 7
Correct Answer: C
Solution :
Given A.R is \[5,2,-1,\] ...... \[\Rightarrow \] \[a=5,\,\,d=2-5=-3\] \[{{T}_{n}}=-22\] \[\Rightarrow \] \[a+(n-1)d=-22\] \[\Rightarrow \] \[5+(n-1)\,(-3)=-22\] \[\Rightarrow \] \[n=10\] Hence, 10th term of the given A.P. is\[-22\].You need to login to perform this action.
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