If a, b, c, d, e are five consecutive odd numbers, their average is.
A. 5 (a + 4) B. $\Large\frac{\text { abcde }}{5}$ C. 5 (a + b + c + d + e) D. None of these Answer: Option DShow Answer
Solution(By Apex Team)
$\begin{array}{l}\text{Clearly,}\\
\text{b = a + 2}\\
\text{c = a + 4}\\
\text{d = a + 6}\\
\text{e = a + 8}\\
\text{∴ Average}\\
\begin{array}{l}
=\Large\frac{a+(a+2)+(a+4)+(a+6)+(a+8)}{5} \\
=\left(\Large\frac{5 a+20}{5}\right) \\
=(a+4)
\end{array}\end{array}$
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