Question

If the sum of elements andaverage are respectively 65 and 13 thenfind the no.Of elements

Answer 1

Answer:

5

Step-by-step explanation:

Sum of elements = 65

Average of elements = 13

let the number of elements be n.

Now,

$\textrm{Average of n numbers}  =$ $\frac{\textrm{sum of n numbers}}{\textrm{n}}$

So, we get that  13 = $\frac{65}{n}$

or , n = $\frac{65}{13}$ = 5

So,total number of elements is 5.