Question

2. The mean of the numbers 10, 20, 30 and 40 is:-
a) 20
b) 25
c) 30
S​

Answer 1

Answer:

i hope it will help you all

Answer 2

Answer:-

Given terms=10,20,30,40

Number of terms=4

We know that

$\boxed{\sf Mean=\dfrac{Sum\;of\:terms}{Number\:of\:terms}}$

$\\ \tt\bull\rightarrowtail Mean=\dfrac{10+20+30+40}{4}$

$\\ \tt\bull\rightarrowtail Mean=\dfrac{100}{4}$

$\\ \tt\bull\rightarrowtail Mean=25$