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Question
If
a
:
b
=
2
:
3
,
b
:
c
=
5
:
6
and
c
:
d
=
8
:
1
1
then find
a
:
d
.
Easy
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Solution
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Given,
a
:
b
=
2
:
3
or,
b
a
=
3
2
......(1).
And
b
:
c
=
5
:
6
or,
c
b
=
6
5
.......(2)
And
c
:
d
=
8
:
1
1
or,
d
c
=
1
1
8
........(3).
Now multiplying (1) and (2) and (3) we get,
d
a
=
9
9
4
0
or,
a
:
d
=
4
0
:
9
9
.
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