if the arithmetic mean of the two numbers X1 and X2 is 5 if X1 =3,then X2 is
Answers
Answered by
5
Answer:
We have,
n
x
1
+x
2
+x
3
+...+x
n
=1
⇒x
1
+x
2
+x
3
+...+x
n
=n (Given)
∴ Required arithmetic mean =
n
k
x
1
+
k
x
2
+
k
x
3
+...+
k
x
n
=
k
1
(
n
x
1
+x
2
+x
3
+...+x
n
)=
k
1
if k<1→
k
1
>1
if k>1→
k
1
<1
if k=2→k=1
Similar questions