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Two solutions of 90% and 97% purity are mixed, resulting in 21 L of mixture of 94% purity. The quantity of the second solution in the resulting mixture, (in L) is1). 152). 123). 94). 6 |
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Answer» advice - use alligation let see-AB 9097
94
(97-94):(94-90) 3:4=7 = 21ltrs (GIVEN) |||| ||1 = 3ltrs |4*3ltrs = 12ltrs (SECOND SOLUTION) = answer 3*3 = 9ltrs (first solution) |
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