Arithmetic Progressions
> Question
MCQ
1 mark
Year: 2020
Easy
CBSE Class 10
arithmetic-progressions
common-difference
Question
The value of
x
for which
2
x
,
(
x
+
10
)
and
(
3
x
+
2
)
are the three consecutive terms of an AP, is:
Solution
1
For AP:
2
(
x
+
10
)
=
2
x
+
(
3
x
+
2
)
⇒
2
x
+
20
=
5
x
+
2
⇒
x
=
6
+1 mark
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