Two solutions of 90% and 97% purity are mixed resulting in 21 litres of mixture of   94 % purity. How much is the quantity of the first solution in the resulting mixture?

  • Option 1)

    15\: litres

  • Option 2)

    12\: litres

  • Option 3)

    9\: litres

  • Option 4)

    7\: litres

  • Option 5)

    6\: litres

Answers (1)

First solution = 3/7 x 21 = 9L

Exams
Articles
Questions