A) 29th
B) 19th
C) 59th
D) 49th
Correct Answer: D
Solution :
[d] Let the nth term \[=151\] Here, first term, \[a=7\] Common difference, \[d=3\] \[\therefore \] \[{{T}_{n}}=a+(n-1)d\] \[\Rightarrow \] \[151=7+(n-1)\times 3\] \[\Rightarrow \] \[(n-1)\times 3=144\] \[\Rightarrow \] \[n-1=\frac{144}{3}=48\]\[\Rightarrow \]\[n=49\] |
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