Answer :
white vs brown
1cup - 3cups
2cups - 6cups
3cups - 9cups
as you can see, if you add 1 to whit, you also add 3 to brown. the ratio is 1:3. every one white = 3 brown.
1cup - 3cups
2cups - 6cups
3cups - 9cups
as you can see, if you add 1 to whit, you also add 3 to brown. the ratio is 1:3. every one white = 3 brown.