Question

If a, b, c, d, e are five consecutive odd integers, then what is their average ?
1. a + 4
2. \(\frac{{a\ b\ c\ d\ e}}{5}\)
3. 5(a + b + c + d + e)
4. a + 8

Answer 1

Correct Answer - Option 1 : a + 4

Given

a, b, c, d, e are five consecutive odd integers

Concept used

Average

Calculation

Suppose the number are

⇒ a, a + 2, a + 4, a + 6 and a + 8

Average of five numbers

⇒ \(\frac{{a\ +\ \left( {a + 8} \right)}}{2}\)

⇒ \(\frac{{2a\ +\ 8}}{2}\)

⇒ a + 4