Question

Between the numbers 2 and 20, 8 means are inserted, then their sum is

• A. $88$
• B. $44$
• C. $176$
• D. None of these

Answer 1

The correct option is A $88$

Let $a,A_1,A_2....A_g,bϵA.P.$
where $a=2,b=20,n=8$
Therefore, sum of the means $=\frac{n}{2}(a+b)=\frac{8}{2}(2+20)=88$
Ans: A