A) 10
B) 9
C) 8
D) 6
Correct Answer: A
Solution :
We must have, \[(2n+19)\,(2n-9)\,<0\] \[\Rightarrow \,\,\frac{-19}{2}<n<\frac{9}{2}\,\Rightarrow \,\,n\in \,\,\{1,\,2,\,3,\,4\}\] Hence, sum \[=1+2+3+4=10\]You need to login to perform this action.
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