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Standard VII
Mathematics
Integers
Question
For two numbers
a
:
b
=
5
:
7
with
a
−
b
=
−
2
, then find the numbers.
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Solution
Verified by Toppr
Given,
a
:
b
=
5
:
7
or,
a
b
=
5
7
.......(1).
Also given,
a
−
b
=
−
2
or,
a
+
2
=
b
......(2).
Using the value of (2) in (1) we get,
a
a
+
2
=
5
7
or,
5
a
+
10
=
7
a
or,
2
a
=
10
or,
a
=
5
.
Then
b
=
7
.
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