What is the ratio in which a dealer mixes two varieties of coffee?

Good one !! I think you got most people over there with the nuance in statement - 2.
Only wondering if the GMAT will also tease us in the same way

E:
Statement II only gives the the selling price and not profit or Loss%.

Let say ,the dealer mixes 'x' kg coffee of price 180 per kg with 'y' kg coffee of price 210 per kg and makes total 'z' kg coffee of selling price 198 per kg.It means x+y=z (weight) .............According the question,180x+210y=198z (price). I need not consider profit or loss or how much coffee did the dealer sell because the question does not tell or ask anything about these. From weight equation and price equation,i get x=2 kg,y=3 kg and z=5 kg.So we can say,1. The dealer mixes 2kg coffee priced at 180 per kg with the 3kg coffee priced at 210 per kg

2. The mixture of coffee is 5kg and sold at 198 per kg.
That means ,the ratio in which a dealer mixes two varieties of coffee is 2/3.

There is a ridiculous twist in the question from which official questions will always refrain. It seems like the 2nd statement is actually made to trick people into thinking that the price is the final price. Not a cool question!!

If the Second statement was stated as 'The cost of mixture is 198/kg' then could we determine ratios ?