Question

If the mean of the first 15 natural numbers is 8, then what is the sum of the first 15 natural numbers?​

Answer 1

$\huge\mathcal\pink{ANSWER:-}$

Solution:-

First 15 natural numbers are 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 and 15

Now mean of the numbers = sum of the numbers/total number of numbers

(1 + 2+ 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 + 13 + 14 + 15)/15

= 120/15

Mean = 8

So, the mean of first natural numbers is 8.

Answer 2

Answer:

120

Step-by-step explanation:

x/15=8

x=15*8

x=120