CAT 2018 Slot 2 QA Q33 Ratio, Mixtures & Averages

Question 33 of the Quantitative Ability (QA) section, CAT 2018 Slot 2, with CAT's official answer.

The strength of a salt solution is p% if 100 ml of the solution contains p grams of salt. If three salt solutions A, B, C are mixed in the proportion 1 : 2 : 3, then the resulting solution has strength 20%. If instead the proportion is 3 : 2 : 1, then the resulting solution has strength 30%. A fourth solution, D, is produced by mixing B and C in the ratio 2 : 7. The ratio of the strength of D to that of A is
  1. A
    3 : 10
  2. B
    1 : 3
  3. C
    2 : 5
  4. D
    1 : 4

Answer: (B) 1 : 3 Ratio, Mixtures & Averages MCQ

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