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Standard VIII
Mathematics
Solving Equations with Linear Expressions on One Side and Numbers on the Other Side
Question
The mean of
x
,
x
+
3
,
x
+
6
,
x
+
9
and
x
+
12
is
x
+
6
x
+
9
x
+
3
x
+
12
A
x
+
6
B
x
+
9
C
x
+
3
D
x
+
12
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Solution
Verified by Toppr
By definition,
Average
=
x
+
(
x
+
3
)
+
(
x
+
6
)
+
(
x
+
9
)
+
(
x
+
12
)
5
=
5
x
+
30
5
=
x
+
6
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Similar Questions
Q1
The mean of
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,
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,
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and
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View Solution
Q2
The mean
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,
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,
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Q3
If the arithmetic mean of x, x + 3, x + 6, x + 9, and x + 12 is 10, the x =
(a) 1
(b) 2
(c) 6
(d) 4