If a, b, c, d, e are five consecutive odd number , their

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If a, b, c, d, e are five consecutive odd number , their average is ?

1. 5 (a + 4)
2. abcd/5
3. 5 (a + b + c + d + e)
4. None of these

Correct Option: D

Since a, b, c, d, e are 5 consecutive numbers so
b = a + 2.
c = a + 4.
d = a + 6.
e = a + 8.

Average = (a + b + c + d + e)/ 5
= [a + (a + 2 ) + (a +4 ) + (a+6 )+ (a+8)] / 5
= (5a+20) / 5
= a + 4