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CDS Model Paper 3 Mathematics
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© examsnet.com
Question : 11
Total: 100
Two casks of 48 Land
42
L
are filled with mixtures of wine and water, the proportions in the two casks being respectively
13
:
7
and
18
:
17
. If the contents of the two casks be mixed and
20
L
of water is added to the whole, what will be the proportion of wine to water in the resultant solution?
21
:
31
12
:
13
13
:
12
None of these
Validate
Solution:
In first cask,
Quantity of water
=
7
20
×
48
=
16.8
L
Quantity of wine
=
13
20
×
48
=
31.2
L
In second cask,
Quantity of water
=
17
35
×
42
=
20.6
L
Quantity of wine
=
18
35
×
42
=
21.6
L
Now after mixing:
Total quantity of wine
=
52.8
L
Quantity of water
=
57.2
L
Ratio after mixing
=
52.8
57.2
=
528
572
=
12
13
=
12
:
13
.
© examsnet.com
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