SSC CPO SI and ASI 2013 Paper

Question : 140 of 200

Marks: +1, -0

140.The proportion of acid and water in three samples is 2 : 1, 3 : 2 and 5 : 3. A mixture containing equal quantities of all three samples is made. The ratio of water and acid in the mixture is

120 : 133
227 : 133
227 : 120
133 : 227

Validate

Solution:

(2) Since, all samples are taken in equal amount, required ratio of acid to water is,

( {2}/{3}+ {3}/{5}+ {5}/{8} ) : ( {1}/{3}+ {2}/{5}+ {3}/{8} )

= ( {80+72+75}/{120} ) : ( {40+48+45}/{120} )

=227 : 133

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