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Byju's Answer
Standard XII
Mathematics
Rate of Change
The sum of ...
Question
The sum of
15
,
x
,
51
,
2
x
+
3
is
114
find x
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Solution
The data is
15
,
x
,
51
,
2
x
+
3
Their sum is
114
⟹
15
+
x
+
51
+
2
x
+
3
=
114
69
+
3
x
=
114
3
x
=
114
−
69
3
x
=
45
x
=
15
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0
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