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CAT 2019 Shift 1 Paper
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© examsnet.com
Question : 97
Total: 100
A chemist mixes two liquids 1 and 2. One litre of liquid 1 weighs 1 kgand one litre of liquid 2 weighs 800 gm. If half litre of the mixtureweighs 480 gm, then the percentage of liquid 1 in the mixture, interms of volume, is
70
85
80
75
Validate
Solution:
Weight of liquid 1 per litre
=
1000
g
m
Weight of liquid 2 per litre
=
800
g
m
Weight of mixture per litre
=
2
×
480
=
960
g
m
Applying alligation rule
Quantity of liquid
1
Quantity of liquid
2
=
960
−
800
1000
−
960
=
4
1
Therefore, the liquids are mixed in
4
:
1
.
Hence, the percentage of liquid
1
=
(
4
4
+
1
)
×
100
=
80
%
© examsnet.com
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