Question

Add first 15 natural numbers and find the average?

Solution with formula?

Answer 1

120

Explanation:

Answer 2

Good morning ☕️

Answer:

8

Explanation:

the formula : (sum of 15 consecutive term of an arithmetic sequence)

`1+2+3+...+15=(15*(15+1))/(2) =(15*16)/(2)=15*8\\`

Now,

`Average=(15*8)/(15) =8`