If $a, b, c, d, e$ are five consecutive odd numbers, their average is:

5 (a + 4)

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\frac{a b c d e}{5}

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5 (a + b + c + d + e)

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None of these

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Solution

The correct option is D None of these
Given
$a, b, c, d, e$ are five consecutive odd number
$b = a + 2$
$c = a + 4$
$d = a + 6$
$e = a + 8$
Avg $= \frac{a + b + c + d + e}{5}$
$= \frac{a + a + 2 + a + 4 + a + 6 + a + 8}{5}$
$= \frac{5 a + 20}{5}$
Avg $= a + 4$
Hence, option 'D' is correct.

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