A) b
B) d
C) e
D) c
Correct Answer: A
Solution :
Let\[a=2n+1,b=2n+3,c=2n+5\] Mean \[=\frac{a+b+c}{3}=\frac{2n+1+2n+3+2n+5}{3}\] \[=\frac{6n+9}{3}=2n+3=b\]
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