A) 148
B) 150
C) 160
D) 153
Correct Answer: B
Solution :
[b] Sequence of number of add number between 60 to 360 be, \[61,63,65,...........359\] Which is in A.P. \[\therefore {{t}_{n}}=a+(n-d)d\] \[359=61+\left( n-1 \right)2\] \[\Rightarrow (n-1)=\frac{359-61}{2}=\frac{298}{2}=149\] \[\therefore n=150\]
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