Type 2 - Find the ratio using alligation concept

9. Altering Product Strength 9.2) Alligation 9.2.1) Alligation

9.2.1.1) Alligation Normal 1


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In what ratio should you mix 29.1% and 15.9% sources of an ointment in order to obtain a product with strength of 18.1%?


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lb equals 1 : 5 kg

    The alligation tic-tac-toe will have a structure like this:

    `[[29.1 %,\quad\quad\quad\quad, 2.2 pt],[\quad\quad\quad\quad,18.1 % , \quad\quad\quad\quad],[15.9 %,\quad\quad\quad\quad,11 pt]]`

    Therefore, 2.2 parts should be taken from the source of 29.1%, and 11 parts should be taken from the source of 15.9%.
    `therefore` the ratio will be `(2.2)/(11)` or `(2.2/2.2)/(11/2.2)` `=> 1` : `5`. Ans.