suppose the nominal exchange rate is 20 flops per gulp. a guilderian trader buys a 120 flop barrel of florish pickles by exchanging 6 gulps and a florish trader buys a 4 gulp crate of guilderian apples by exchanging 80 flops. then the gulp depreciates to 10 flops per gulp. how much must the guilderian pay for the same 120 flop barrel of pickles