Question

The A.M. of the first ten odd numbers is -

• A. $10$
• B. $100$
• C. $1000$
• D. $1$

Answer 1

The correct option is A

$10$

Arithmetic Mean (A.M) – Sum of all of the numbers of a group, when divided by the number of items in that list.

The first ten odd numbers are -

$1,3,5,7,9,11,13,15,17,19$

A.M.$=\frac{1+3+5+7+9+11+13+15+17+19}{10}$

A.M$=\frac{100}{10}$

A.M$=10$

Hence, the arithmetic mean of the first ten odd numbers is $10$.