A spice mix contains coriander and cumin in the ratio 1/2 cup : 1/4 cup. A cup of coriander is 80 grams. A cup of cumin is 100 grams. Work out the mass of 6 cups of the spice mix.

Simplifying the ratio given above by dividing both sides by 1/4 will give us,

2: 1 (coriander : cumin)

6 cups of the spice mix is therefore 4 cups coriander and 2 cups of cumin. Multiplying both number of cups by their respective masses will give us the answer of 320 grams coriander and 200 grams cumin.