In what ratio two type of sugar of Rs.38/kg and Rs.30/kg should be mixed, so that the cost of mixture becomes Rs.35.2/kg after gaining profit of 10%.

1 : 3

10% = \(\frac{1}{10}\)

Cost price        :         Selling Price

       10                               11

        ↓                                 ↓

     ×3.2                             ×3.2

        ↓                                 ↓

       32                              35.2 (given)

Now use alligation method: