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Byju's Answer
Standard XII
Mathematics
Arithmetic Progression
If 5a+3b/2a...
Question
If
5
a
+
3
b
2
a
−
3
b
=
23
5
, then find the value of a
:
b.
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Solution
5
a
+
3
b
2
a
−
3
b
=
23
5
Using cross multiplication:
⇒
5
(
5
a
+
3
b
)
=
23
(
2
a
−
3
b
)
⇒
25
a
+
15
b
=
46
a
−
69
b
⇒
21
a
=
84
b
a
b
=
84
21
=
4
1
=
4
:
1
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